Mangano Calcite

CaCO3 (Mn) · Mohs 3 · Trigonal · Heart Chakra

The stone of mangano calcite: meaning, mineralogy, and somatic practice.

Grief & LossSelf-LoveHeart HealingAnxiety Relief

This page documents traditional and cultural uses of mangano calcite alongside emerging research on tactile grounding objects. Crystalis does not claim that mangano calcite treats, cures, or prevents any medical condition. For mental health concerns, consult a qualified professional.

Crystalis Editorial · 40+ Years · Herndon, VA · 10 peer-reviewed sources

Origins: Peru, Mexico, Bulgaria

Crystalis

Materia Medica

Mangano Calcite

The Pink Balm

Grief & LossSelf-LoveHeart Healing

Crystalis

Protocol

The Lullaby

The stone that warms fastest teaches the body it is already held.

3 min

1
Heart Placement (20 seconds)Place the mangano calcite directly over your heart -- not your left chest, your center sternum, where the breastbone meets soft tissue. Hold it there with your dominant hand, fingers spread. Feel the stone's temperature: mangano calcite warms quickly to body heat, faster than quartz, faster than most stones. Within seconds it will feel like it is part of you, not separate from you. That speed of warming is the calcite's low thermal conductivity -- and it is the first teaching. This stone does not stay cold. It meets you where you are.
2
The Soften Breath (50 seconds)Close your eyes. Inhale through the nose for 3 counts, directing the breath toward the stone on your chest. Feel your sternum rise against the calcite. At the top, rest — not gripping, just arriving. Exhale through the nose for 3 counts, and as you exhale, consciously soften the muscles around your heart. Not the heart itself. The muscles that guard it -- the pectorals, the intercostals, the deep fascial layer that tightens when you brace. Four in, one held, six out. Five full cycles. The exhale is where the softening happens. Each cycle, soften one degree more. You are not trying to open. You are trying to un-brace.
3
The Permission Statement (30 seconds)Stone still on your heart. Eyes still closed. Say one sentence, silently or aloud: "I am allowed to feel this." Not "I should feel this." Not "I need to feel this." Allowed. The word matters. Permission is different from instruction. It does not tell the body what to do. It removes the prohibition against what the body already wants to do. If tears come, let them. If nothing comes, let that be enough too. The statement is not a command to grieve. It is the lifting of the order not to.
4
The Inner Voice Check (40 seconds)Still holding the stone to your heart, listen inward. What is the first thing your inner voice says in response to the permission? Write it down mentally or whisper it. Is it kind? Is it skeptical? Is it cruel? Do not argue with it. Just notice its tone. Then ask: "Would I speak to a child this way?" If the answer is no, the voice is not yours. It is a pattern you absorbed. The mangano calcite sits over your heart as a physical reminder that the voice inside your chest does not have to match the one inside your head. One of them is the truth. The stone knows which.

Continue in the full protocol below.

tap to flip for protocol

Tenderness has gotten overcomplicated.

Mangano calcite is calcite colored by manganese, pale rose to deeper blush, the same yielding carbonate body carrying a pink quieter than urgency. The room changes temperature before the mind argues with it. That simplicity can be enough.

What Your Body Knows

Nervous system states

In somatic practice, its pale pink color, smooth texture, and surprising warmth in the hand create an immediate downshift in sympathetic tone.

sympathetic

The Braced Heart

You can feel it in your sternum. A tightness that is not physical but registers physically; the muscles around your heart bracing against the next loss, the next disappointment, the next time someone you trusted does not show up. Your sympathetic system learned that vulnerability equals pain, so it armored the one place that cannot survive armor: the heart. The bracing is exhausting. It takes energy to keep a muscle contracted indefinitely, and the fatigue shows up as emotional flatness, difficulty crying, or a strange distance from joy that you cannot explain. Mangano calcite addresses this state with a gentleness that does not threaten the armor. It does not demand you open. It sits with you while you are closed and waits. The stone's softness; Mohs 3, almost body-warm in the hand; signals safety to the nervous system without pressure. The heart unbraces when it is ready, not when it is told to.

dorsal vagal

The Unshed

There is something you need to cry about and you cannot. The grief is there; you can feel its weight, its pressure, its presence in your chest; but the tears are locked behind a dorsal vagal wall that your body built to survive something that was too much to feel at the time. Now the emergency is over but the wall remains, and the unshed grief sits behind it like water behind a dam, creating pressure without release. You are not numb. You are overfull. Mangano calcite is the stone practitioners reach for when tears need to come and cannot. Its energy does not force the release. It softens the wall, one molecular layer at a time, until the surface tension breaks. Working with this stone over days or weeks has a cumulative effect; like warm water slowly dissolving calcite, the gentleness itself is the mechanism.

ventral vagal

The Harsh Inner Voice

The cruelest voice in your life is your own. It narrates your failures before breakfast. It rehearses your inadequacies in the shower. It takes every kind thing someone says and explains why they do not mean it. This voice is not a personality flaw. It is a sympathetic-dorsal pattern where the nervous system turned its threat-detection inward, monitoring the self as if you were the danger. The inner critic began as protection; if you beat yourself up first, no one else's criticism would surprise you. But the protection became the wound. Mangano calcite addresses this pattern not by arguing with the voice but by introducing a counter-frequency: unconditional gentleness. The stone's energy does not say "you are wrong to criticize yourself." It says "you are allowed to rest from this." That distinction matters. It does not challenge. It offers reprieve.

ventral vagal

The Open Chest

Your chest is soft. Your breathing reaches your sternum without obstruction. You can feel tenderness toward yourself without flinching, and tenderness toward others without losing yourself. The inner voice is quiet, or if it speaks, it speaks as an ally rather than a prosecutor. This is ventral vagal regulation in the heart center: the state where compassion flows inward and outward without depletion because the source is not effortful; it is structural. Mangano calcite does not create this state. It celebrates it. The stone is what an open, undefended heart looks like in mineral form; pink, soft, warm, and strong enough to exist without armor.

Nervous system mapping based on polyvagal theory (Porges, 2011).

The Earth Made This

Formation: How Mangano Calcite Becomes Mangano Calcite

Calcite that turned pink because manganese was present when it formed, and for no other reason. Mangano calcite is calcium carbonate, CaCO3, with manganese substituting for calcium in the crystal lattice at concentrations typically under 5 percent. The pink color ranges from bubblegum to salmon depending on the Mn/Ca ratio and oxidation state.

Most commercial material comes from Peru, where it occurs in massive, banded habits within hydrothermal vein systems. It is soft, Mohs 3, and reacts readily in acid like all calcite. The banding visible in polished slabs records rhythmic changes in the fluid chemistry that deposited it, each band a chapter of slightly different manganese concentration.

It is one of the few pink minerals that owes its color entirely to a transition metal in the lattice rather than to inclusions or irradiation.

Material facts

What the stone is made of

Mineralogy: Manganese-bearing calcite, carbonate class. Chemical formula: (Ca,Mn)CO₃, with Mn²⁺ substituting for Ca²⁺ in the calcite lattice. Crystal system: trigonal. Mohs hardness: 3. Specific gravity: 2.71-2.84. Color: pink to rose, from crystal field effects on Mn²⁺ ions in octahedral coordination. Manganese content typically 1-15% by weight; higher concentrations produce deeper pink. Luster: vitreous to pearly. Habit: rhombohedral crystals, scalenohedral, or massive banded material. Perfect rhombohedral cleavage in three directions at ~75°. Also known as manganoan calcite in strict mineralogical nomenclature.

Deeper geology

The pink color of mangano calcite is a direct result of crystal field effects on the Mn2+ ion. When manganese sits in the octahedral calcium site, the surrounding oxygen atoms create a crystal field that splits the d-orbital energy levels. Electronic transitions between these split d-orbitals absorb specific wavelengths in the green-yellow portion of the visible spectrum, transmitting the complementary pink to rose hue. This coloring mechanism is sensitive to ultraviolet radiation -- prolonged UV exposure (direct sunlight) can alter the oxidation state of the manganese or damage the crystal field geometry, causing the pink color to fade irreversibly to white or pale gray.

Mangano calcite forms in hydrothermal and sedimentary environments where both calcium carbonate and manganese are available in the mineralizing fluid. The most significant deposits occur in association with manganese ore bodies and polymetallic hydrothermal vein systems. In Peru's Central Highlands, mangano calcite crystallizes in veins associated with silver-lead-zinc mining districts, where manganese-rich fluids percolated through limestone host rocks. The Bulgarian deposits near Krushev Dol occur in similar polymetallic vein environments. Mexican deposits in Chihuahua and Durango are associated with sedimentary manganese deposits in Cretaceous limestone formations.

Calcite is one of the softest common minerals used in crystal practice, registering Mohs 3 on the hardness scale -- scratchable with a copper coin. It has perfect rhombohedral cleavage in three directions, meaning it breaks along smooth, flat planes that intersect at 74.5-degree angles. This combination of low hardness, perfect cleavage, and solubility in even mildly acidic water makes mangano calcite one of the most delicate stones in the practitioner's collection. It requires careful handling, dry storage, protection from sunlight, and avoidance of any water contact. These care requirements are not inconveniences -- they are part of the teaching. A stone this gentle demands gentleness in return.

Mineralogy

Mineral specs

Chemical Formula

CaCO3 (Mn)

Crystal System

Trigonal

Mohs Hardness

Specific Gravity

2.71

Luster

Vitreous to pearly

Color

Soft pink to rose

Crystal system diagram represents the general trigonal classification. Diagram created by Crystalis for educational reference.

Traditional Knowledge

Traditions across cultures

Peruvian Mining

20th century-present

The Peruvian Pink Calcite Production

Peru emerged as the primary global source of gem-quality mangano-calcite (also called manganoan calcite) during the 20th century, with significant production from polymetallic mines in the central Andes including deposits in the Junin, Pasco, and Huancavelica regions. The mineral -- calcium carbonate with manganese substituting for calcium in the crystal structure -- forms in hydrothermal vein systems associated with lead-zinc-silver ore bodies. Peruvian specimens range from translucent rose pink to opaque banded material and are extracted as a byproduct of base metal mining. The mines of Pachapaqui, Uchucchacua, and other Andean operations produce specimens sought by both mineral collectors and the crystal market.

Mineralogical Science

19th-20th century

The Manganese Coloration Chemistry

Mineralogists established that mangano-calcite's pink color results from manganese (Mn2+) ions substituting for calcium within the trigonal calcite crystal lattice. The degree of manganese substitution determines color intensity, ranging from barely perceptible pale pink at low concentrations to vivid rose at higher levels. This substitution is part of a continuous solid solution series between pure calcite (CaCO3) and rhodochrosite (MnCO3), with mangano-calcite occupying the calcium-dominant portion of the series. The Mohs hardness of 3 and perfect rhombohedral cleavage are inherited from the calcite structure, making mangano-calcite a soft, fragile mineral that requires careful handling in both specimen preparation and lapidary work.

Bulgarian Mineral Collecting

Late 20th century

The Krushev Dol Mine Specimens

The Krushev Dol mine in the Rhodope Mountains of southern Bulgaria produced exceptional mangano-calcite specimens beginning in the late 20th century, including large rhombohedral crystals with intense pink saturation that became benchmark specimens in mineral collections worldwide. Bulgarian material often occurs in association with rhodochrosite, quartz, and sulfide minerals within the polymetallic vein system. The Rhodope Mountain specimens demonstrated that manganese-rich hydrothermal systems in different geological settings could produce mangano-calcite rivaling the best Peruvian material, expanding the known geography of significant occurrences and enriching the collector market with a distinct European source.

Contemporary Crystal Practice

1990s-present

The Compassion Without Collapse Practice

Crystal practitioners adopted mangano-calcite as a heart-centered stone specifically for compassion work that risked emotional overwhelm. Its extreme softness (Mohs 3) became part of the prescriptive metaphor: a stone too soft to armor yourself with, requiring the same gentleness in handling that the practitioner was being asked to develop internally. Authors including Robert Simmons in The Book of Stones described it as a stone for the heart that has contracted from pain. Practitioners distinguished it from rose quartz by its fragility and from rhodochrosite by its gentler pink tone, prescribing mangano-calcite for people whose compassion capacity was intact but whose willingness to exercise it had been damaged by experience. It was the stone of re-opening.

When This Stone Finds You

Sacred Match prescribes Mangano Calcite when you report:

Chest tightness from emotional guarding

Inability to cry or release grief

Harsh inner critic

Difficulty receiving love

Self-punishment patterns

Emotional exhaustion from performing strength

Inner child wounds

Mangano calcite finds you when you have been strong for so long that you forgot softness was an option. When the last time someone held space for your pain was so long ago that you stopped believing it was possible. This stone does not arrive to fix you. It arrives to sit with you. And sometimes that is the only medicine that works -- not a solution, not a strategy, just a presence that says: you are allowed to ache.

Somatic protocol

The Lullaby

The stone that warms fastest teaches the body it is already held.

3 min protocol

1
Heart Placement (20 seconds)Place the mangano calcite directly over your heart -- not your left chest, your center sternum, where the breastbone meets soft tissue. Hold it there with your dominant hand, fingers spread. Feel the stone's temperature: mangano calcite warms quickly to body heat, faster than quartz, faster than most stones. Within seconds it will feel like it is part of you, not separate from you. That speed of warming is the calcite's low thermal conductivity -- and it is the first teaching. This stone does not stay cold. It meets you where you are.
2
The Soften Breath (50 seconds)Close your eyes. Inhale through the nose for 3 counts, directing the breath toward the stone on your chest. Feel your sternum rise against the calcite. At the top, rest — not gripping, just arriving. Exhale through the nose for 3 counts, and as you exhale, consciously soften the muscles around your heart. Not the heart itself. The muscles that guard it -- the pectorals, the intercostals, the deep fascial layer that tightens when you brace. Four in, one held, six out. Five full cycles. The exhale is where the softening happens. Each cycle, soften one degree more. You are not trying to open. You are trying to un-brace.
3
The Permission Statement (30 seconds)Stone still on your heart. Eyes still closed. Say one sentence, silently or aloud: "I am allowed to feel this." Not "I should feel this." Not "I need to feel this." Allowed. The word matters. Permission is different from instruction. It does not tell the body what to do. It removes the prohibition against what the body already wants to do. If tears come, let them. If nothing comes, let that be enough too. The statement is not a command to grieve. It is the lifting of the order not to.
4
The Inner Voice Check (40 seconds)Still holding the stone to your heart, listen inward. What is the first thing your inner voice says in response to the permission? Write it down mentally or whisper it. Is it kind? Is it skeptical? Is it cruel? Do not argue with it. Just notice its tone. Then ask: "Would I speak to a child this way?" If the answer is no, the voice is not yours. It is a pattern you absorbed. The mangano calcite sits over your heart as a physical reminder that the voice inside your chest does not have to match the one inside your head. One of them is the truth. The stone knows which.
5
Gentle Return (40 seconds)Remove the stone from your chest slowly. Hold it in both hands at belly level. Open your eyes. Look at the pink. That color is manganese -- an element that strengthens steel alloys. The softest-looking stone in your collection contains one of the hardest-working elements in metallurgy. Let that contradiction settle. Then place the stone somewhere you will see it throughout the day -- a nightstand, a bathroom shelf, a pocket close to your body. The protocol ends when the stone is placed. The softening continues every time you touch it.

The #1 Question

Can mangano calcite go in water?

No. Mangano calcite is NOT water safe. Calcite (Mohs 3) is a soft mineral that dissolves in water, especially acidic water. Even brief water exposure can dull the polished surface, and prolonged soaking will dissolve the stone. The manganese content can also leach into water, making it unsuitable for gem water preparation. Keep mangano calcite completely dry.

Care and Maintenance

How to care for Mangano Calcite

The #1 Question Can Mangano Calcite Go in Water? NO . NOT WATER SAFE Mangano calcite must never be placed in water.

Calcite (CaCO 3 ) is a soft mineral at Mohs 3 that dissolves in water, particularly acidic water. Even neutral tap water will slowly erode polished surfaces over time. The dissolution reaction (CaCO 3 + H 2 O + CO 2 → Ca(HCO 3 ) 2 ) is accelerated by dissolved carbon dioxide, which is present in virtually all natural water sources.

Additionally, the manganese content can leach into water, creating potential toxicity concerns. Running water cleansing: not safe . dissolves surface and dulls polish immediately Soaking: never .

significant material loss and surface degradation occur within minutes Salt water: absolutely not . salt accelerates dissolution and can crystallize in cleavage planes Gem water / elixir preparation: not safe . manganese can leach into the water Humidity: prolonged exposure to high humidity can cause slow surface degradation Sweat: prolonged skin contact during exercise can dull the stone from perspiration acidity If your mangano calcite gets accidentally wet, dry it immediately and completely with a soft cloth.

Do not rub . pat dry. The perfect rhombohedral cleavage of calcite means any mechanical stress on a wet surface can cause flaking or chipping along cleavage planes.

This stone requires the same care you would give to an unfinished watercolor painting: keep it dry, keep it shaded, and handle it with deliberate gentleness.

Crystal companions

What pairs well with Mangano Calcite

Black Tourmaline

Grounds the emotional opening mangano calcite creates. Without grounding, heart work can leave you flooded. Black tourmaline holds the container so the softness has somewhere safe to land.

Rhodochrosite

Deepens the self-love frequency. Where mangano calcite opens the door gently, rhodochrosite walks through it. Together they address both the fear of self-compassion and the practice of it.

Amethyst

Adds spiritual perspective to emotional healing. Amethyst's crown activation helps you see grief patterns from above rather than drowning inside them. A good pairing for nightstand work.

Citrine

Prevents the emotional processing from becoming a loop. Citrine's solar plexus warmth adds forward momentum . you feel, you understand, then you move. Not stuck in the feeling forever.

Blue Lace Agate

Opens the throat after the heart opens. Grief often lives in the throat . the words we never said, the sounds we swallowed. Blue lace agate helps you speak what mangano calcite surfaces.

In Practice

How Mangano Calcite is used

Mangano calcite is a Heart chakra mineral that works through the body's emotional center with exceptional gentleness. Unlike stones that activate or energize, mangano calcite soothes. It does not push the nervous system toward any state. it creates the conditions under which the heart center can soften on its own schedule. In somatic practice, its pale pink color, smooth texture, and surprising warmth in the hand create an immediate downshift in sympathetic tone.

The Braced Heart (nervous system pattern: SYMPATHETIC. chest tightness from chronic emotional guarding) You can feel it in your sternum. A tightness that is not physical but registers physically. the muscles around your heart bracing against the next loss, the next disappointment, the next time someone you trusted does not show up. Your sympathetic system learned that vulnerability equals pain, so it armored the one place that cannot survive armor: the heart. The bracing is exhausting. It takes energy to keep a muscle contracted indefinitely, and the fatigue shows up as emotional flatness, difficulty crying, or a strange distance from joy that you cannot explain. Mangano calcite addresses this state with a gentleness that does not threaten the armor. It does not demand you open. It sits with you while you are closed and waits. The stone's softness. Mohs 3, almost body-warm in the hand. signals safety to the nervous system without pressure. The heart unbraces when it is ready, not when it is told to.

The Unshed (nervous system pattern: DORSAL VAGAL. grief frozen in the body, tears that will not come) There is something you need to cry about and you cannot. The grief is there. you can feel its weight, its pressure, its presence in your chest. but the tears are locked behind a dorsal vagal wall that your body built to survive something that was too much to feel at the time. Now the emergency is over but the wall remains, and the unshed grief sits behind it like water behind a dam, creating pressure without release. You are not numb. You are overfull. Mangano calcite is the stone practitioners reach for when tears need to come and cannot. Its energy does not force the release. It softens the wall, one molecular layer at a time, until the surface tension breaks.

Verification

Authenticity

Hardness Test Mangano calcite is Mohs 3, a copper coin (Mohs 3. 5) will scratch it. If nothing scratches it, it's not calcite.

This is the fastest field test. Acid Reaction Real calcite fizzes visibly when a drop of dilute hydrochloric acid touches it (CO₂ release). Do NOT perform this on a display piece, it etches the surface.

Use on a raw specimen only. Color Distribution Genuine mangano calcite has soft, uneven pink coloring, some areas paler, some deeper, often with white calcite zones. Uniform hot-pink color suggests dye.

Dyed specimens often show color concentrated in fractures. Weight Calcite has a specific gravity of 2. 71.

It should feel noticeably heavier than plastic or resin but lighter than most silicates. If it feels like glass, it's probably glass. Temperature Real mangano calcite feels cool to the touch and warms slowly in the hand.

Plastic and resin warm instantly.

Temperature

Natural Mangano Calcite should usually feel cooler than plastic or resin on first touch and warm more slowly in the hand.

Scratch logic

Use 3 on the Mohs scale as the check, not internet myths. A real specimen should behave in line with the hardness listed above.

Surface and luster

Look for a vitreous to pearly surface quality rather than a painted or plastic shine.

Weight and density

The listed specific gravity is 2.71. If a specimen feels unusually light for its size, it may deserve a second look.

Geographic Origins

Where Mangano Calcite forms in the world

The Bulgarian deposits near Krushev Dol occur in similar polymetallic vein environments. Mexican deposits in Chihuahua and Durango are associated with sedimentary manganese deposits in Cretaceous limestone formations.

FAQ

Frequently asked

What is mangano calcite?

Mangano calcite (also called manganoan calcite or pink calcite) is a manganese-bearing variety of calcite (CaCO3) where manganese ions (Mn2+) substitute for calcium in the crystal lattice, producing its characteristic pale pink to rose color. It crystallizes in the trigonal system, registers Mohs 3, and is one of the softest and most delicate stones used in crystal practice.

Can mangano calcite go in water?

Does mangano calcite fade in sunlight?

Yes. Mangano calcite's pink color fades in prolonged direct sunlight. The manganese-derived coloration is sensitive to UV radiation, which gradually bleaches the pink hue to white or pale gray. Store and display away from windows with direct sun exposure. Moonlight charging is the recommended alternative.

What is the difference between mangano calcite and rose quartz?

They are completely different minerals. Mangano calcite is calcium carbonate (CaCO3, Mohs 3) colored pink by manganese. Rose quartz is silicon dioxide (SiO2, Mohs 7) colored pink by trace titanium, iron, or manganese. Mangano calcite is much softer, not water safe, fades in sun, and has a waxy-to-pearly luster. Rose quartz is hard, water safe, sun stable, and has a vitreous luster. Their energetic applications overlap in heart work but their care requirements are opposite.

What chakra is mangano calcite?

Mangano calcite is a Heart chakra stone. Its soft pink color and gentle energy are associated with unconditional love, emotional healing, self-compassion, and the release of grief and fear stored in the heart center. Some practitioners also associate it with the Higher Heart (thymus) chakra, the energy center between the heart and throat that governs compassion and forgiveness.

References

Sources and citations

Neff, K.D. Self-Compassion: An Alternative Conceptualization of a Healthy Attitude Toward Oneself. *Self and Identity*, 2(2), 85-101. (2003). https://doi.org/10.1080/15298860309032. Self and Identity. [SCI]
DOI: 10.1080/15298860309032
Dana, D. The Polyvagal Theory in Therapy. *W.W. Norton & Company*. (2018). https://doi.org/10.1097/NMD.0000000000001124. Journal of Nervous & Mental Disease. [SCI]
DOI: 10.1097/NMD.0000000000001124
Tsuda, H. & Arends, J. Orientational Micro-Raman Spectroscopy on Hydroxyapatite Single Crystals and Human Enamel Crystallites. *Journal of Dental Research*, 73(11), 1703-1710. (1994). https://doi.org/10.1177/00220345940730110501. Journal of Dental Research. [SCI]
DOI: 10.1177/00220345940730110501
Böttcher, M.E. et al. Manganese(II) partitioning during experimental precipitation of calcite. *Geochimica et Cosmochimica Acta*, 61(22), 4947-4952. (1997). https://doi.org/10.1016/S0016-7037(97)00236-7. Geochimica et Cosmochimica Acta. [SCI]
DOI: 10.1016/S0016-7037(97)00236-7
Wildner, M. & Giester, G. Crystal chemistry of vivianite-type compounds: crystal structures of erythrite and annabergite. *Mineralogy and Petrology*, 75, 43-57. (2001). https://doi.org/10.1007/s007100200013. Mineralogy and Petrology. [SCI]
DOI: 10.1007/s007100200013
Deer, W.A., Howie, R.A. & Zussman, J. Rock-Forming Minerals, Vol. 5A: Non-Silicates. *The Geological Society*, London. (2013). https://doi.org/10.1144/GoLRFM5A. [SCI]
DOI: 10.1144/GoLRFM5A
Van der Kolk, B.A. The Body Keeps the Score. *Viking Press*. (2014). https://doi.org/10.1176/appi.psychotherapy.2015.69.2.189. [SCI]
DOI: 10.1176/appi.psychotherapy.2015.69.2.189
Brand, U. & Veizer, J. Chemical Diagenesis of a Multicomponent Carbonate System. *Journal of Sedimentary Research*, 50(4), 1219-1236. (1980). https://doi.org/10.1306/212F7BB7-2B24-11D7-8648000102C1865D. SEPM Journal of Sedimentary Research. [SCI]
DOI: 10.1306/212F7BB7-2B24-11D7-8648000102C1865D
Germer, C.K. & Neff, K.D. Self-compassion in clinical practice. *Journal of Clinical Psychology*, 69(8), 856-867. (2013). https://doi.org/10.1002/jclp.22021. Journal of Clinical Psychology. [SCI]
DOI: 10.1002/jclp.22021
Gilbert, P. The origins and nature of compassion focused therapy. *British Journal of Clinical Psychology*, 53(1), 6-41. (2014). https://doi.org/10.1111/bjc.12043. British Journal of Clinical Psychology. [SCI]
DOI: 10.1111/bjc.12043

Closing Notes

Mangano Calcite

Calcite turned pink because manganese was present when it formed. Same crystal structure as white calcite, different trace element, different color, different emotional register. The science documents manganese substitution in calcium carbonate.

The practice asks what tenderness looks like when it is caused by a single atomic replacement.

Bring it into practice

What to do with Mangano Calcite next

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Community notes