Autunite 2 2 10 12H2O

Ca(UO2)2(PO4)2 . 10--12H2O -- hydrated calcium uranyl phosphate · Mohs 2 · Orthorhombic · Solar Plexus Chakra

The stone of autunite 2 2 10 12h2o: meaning, mineralogy, and somatic practice.

Self-AwarenessTransformation & ChangeSpiritual ConnectionClarity & Focus

This page documents traditional and cultural uses of autunite 2 2 10 12h2o alongside emerging research on tactile grounding objects. Crystalis does not claim that autunite 2 2 10 12h2o treats, cures, or prevents any medical condition. For mental health concerns, consult a qualified professional.

Crystalis Editorial · 40+ Years · Herndon, VA · 5 peer-reviewed sources

Origins: France, Portugal, USA, DR Congo

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Materia Medica

Autunite 2 2 10 12H2O

The Glowing Eye of Awareness

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Protocol

The Green Glow Witness

Honor the green glow you cannot touch.

3 min

1
Place Autunite in a sealed glass display case or behind glass. Do NOT handle with bare hands — this mineral contains uranium and is radioactive. Keep at least 3 feet away. Settle your posture. Let your breath slow.
2
Observe the vivid yellow-green tabular crystals. Notice the fluorescent quality, the way they seem to hold their own light. Let your eyes soften. Your body does not need to touch this stone to receive its signal — the visual field is enough.
3
With each exhale, release one thing — a thought, a tension, a worry. The stone holds its own boundaries. You hold yours. Continue breathing. Notice where the body softens first.
4
After 3 minutes: check in. Has the breath changed? Has the jaw released? That shift — however small — is the protocol complete. The glow witnessed. The body responded. No contact required.

tap to flip for protocol

People who are frightened by their own force usually learned early that intensity was dangerous unless hidden. Anger, charisma, desire, joy, appetite. Big states came with fallout.

Autunite keeps power and risk in one frame. The radiance is real. So is the need for caution. That pairing feels adult in a way softer spiritual language often does not.

Respect is a better category than shame.

What Your Body Knows

Nervous system states

Autunite is best understood as a visual teaching specimen rather than a contact stone, and it addresses the eyes and orienting system more than any body placement. In nervous system terms it speaks to sympathetic activation, specifically the kind that must remain bounded by clear limits. The mineral’s properties make this unavoidable.

Autunite is a hydrated calcium uranyl phosphate, vividly yellow green, strongly fluorescent, tabular, soft, and radioactive. Its square plates and bright color create immediate visual attraction, while its radioactivity requires distance, containment, and disciplined handling. That combination makes it relevant to a very particular nervous system lesson: not every compelling stimulus is meant for touch.

Mechanically, the practice is observation through separation. Viewed in a sealed display or from a fixed distance, autunite gives the eyes a highly organized field, thin plates, strong color, often striking fluorescence, without inviting grasping or prolonged proximity. For a system that tends to lunge toward intensity, this can support regulated orienting with boundaries intact.

The gaze receives stimulation, but the body practices restraint. That is a somatic pattern in itself. The stone becomes a way to study activation while preserving perimeter and safety procedures.

There is no reason to place it on the body, grip it during meditation, or use it as a weighted object. Its lesson is not contact, but discernment. Autunite lands most precisely in sympathetic state, especially where fascination, charge, and containment need to remain in deliberate relationship rather than collapsing into impulsive approach.

sympathetic

awe

The body is frozen but the mind is on fire. Existential dread is not anxiety about a specific threat. It is the nervous system's response to confronting the vastness of existence, mortality, or meaninglessness without adequate grounding. The dorsal vagal system pulls energy downward while the mind races upward. The result is a dissociative vertigo where the body feels small and the universe feels indifferent. Autunite's role: Autunite is hydrated calcium uranyl phosphate. It is radioactive, fluorescent under UV light, and genuinely dangerous if handled carelessly. It is also strikingly beautiful: bright yellow-green tabular crystals that glow in the dark. Autunite does not comfort. It validates the dread by being exactly what existential confrontation feels like: beautiful, dangerous, and requiring respect rather than avoidance. This is a display stone, not a body stone. Its presence in a collection says: I have looked at the dangerous thing and I did not look away.

dorsal vagal

For a nervous system in dorsal shutdown specifically triggered by existential co...

For a nervous system in dorsal shutdown specifically triggered by existential concerns (mortality, meaninglessness, cosmic indifference), autunite presents a paradoxical resource. Here is a mineral that is actively decaying ; - Mixed state: attraction-repulsion (approach-avoidance conflict): Autunite is one of the few natural objects that genuinely produces simultaneous attraction (extraordinary beauty, brilliant color, mesmerizing fluorescence) and repulsion (radioactive, dangerous, requires distance). This makes it a mirror for any psychological situation involving attraction-repulsion conflict. Witnessing how one manages one's OWN nervous system response to autunite; the pull toward and the push away; can illuminate unconscious approach-avoidance patterns in relationships, career decisions, or creative risks. State awareness: conscious recognition of simultaneous activation of approach and avoidance circuits.

ventral vagal

When already regulated, observing autunite supports the highest-order ventral va...

When already regulated, observing autunite supports the highest-order ventral vagal function: the capacity to hold moral complexity without resolving it. Uranium powers both nuclear weapons and cancer-treating radiation therapy. It is the same element. Autunite does not let the viewer simplify. State support: ventral vagal refinement of moral nuance and tolerance for unresolvable paradox. 5. ; - Sympathetic depletion with loss of wonder: When sustained stress has flattened the capacity for awe; when nothing seems beautiful or remarkable anymore; autunite under UV light is one of the most reliable reset points in the mineral kingdom. The fluorescence is so extraordinary, so unlike anything in ordinary visual experience, that it can briefly bypass cognitive flattening and activate the visual-limbic pathway directly. Even the most depleted nervous system may register "something remarkable is happening." State shift: anhedonic depletion toward micro-recovery of wonder through extraordinary visual stimulus.

Nervous system mapping based on polyvagal theory (Porges, S.W. The Polyvagal Theory. Norton, 2011).

Mineralogy

Mineral specs

Chemical Formula

Ca(UO2)2(PO4)2 . 10--12H2O -- hydrated calcium uranyl phosphate

Crystal System

Orthorhombic

Mohs Hardness

Specific Gravity

3.1--3.2

Luster

Vitreous to pearly on crystal faces; dull on massive or earthy forms

Color

Yellow-Green

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

Traditional Knowledge

Lore and culture around Autunite 2 2 10 12H2O

Science grounds the page. Tradition, lore, and remembered use make it readable as lived knowledge.

French mineralogical tradition (Autun, Burgundy): Autunite was first described in 1852 from specimens found near the city of Autun in Burgundy, France. The city, whose name derives from the Roman settlement Augustodunum, has a deep archaeological and natural history tradition. French mineralogists of the mid-19th century, working within the intellectual framework of the Ecole des Mines and the Museum National d'Histoire Naturelle in Paris, systematically catalogued uranium minerals as part of France's broader scientific program. Autunite's discovery coincided with the early decades of uranium science; the element itself had been identified only 63 years earlier by Martin Heinrich Klaproth in 1789 (Hauy, R. J., "Traite de Mineralogie," 1822; Beudant, F. S., "Traite Elementaire de Mineralogie," 1832).

Uranium prospecting lore (Cold War era, 1940s; 1960s): During the Cold War uranium rush, autunite's brilliant fluorescence made it a prospector's dream indicator mineral. Amateur prospectors armed with UV lamps swept the American West, and a flash of green fluorescence on a rock face often signaled uranium deposits below. The Daybreak Mine near Spokane, Washington, was discovered in part through autunite fluorescence. This era transformed autunite from a mineralogical curiosity into a geopolitical signal; the glowing green mineral that could mean wealth, weapons-grade material, or both. An entire generation of American prospectors learned to read the landscape through UV light (Ringholz, R., "Uranium Frenzy: Boom and Bust on the Colorado Plateau," 1989, W. W. Norton).

Czech/Bohemian uranium mining (Jachymov): The Jachymov mining district (formerly Joachimsthal) in the Czech Republic is where Marie and Pierre Curie sourced the pitchblende from which they isolated radium and polonium. Autunite occurs as a secondary mineral in the Jachymov oxidation zone. The town's history encapsulates the full arc of uranium's cultural meaning: medieval silver mining, then radium discovery (1898), then radon spas, then forced uranium mining under Soviet control (1946-1964) using political prisoner labor, and finally recognition as a UNESCO-significant heritage site. Autunite from Jachymov carries this layered history of extraction, discovery, exploitation, and memorialization (Sejkora, J., et al., "Jachymov Mineralogy," Czech Geological Survey, 2005).

Contemporary mineral collecting and radiation safety: In the 21st-century mineral collecting community, autunite occupies a unique position as one of the most beautiful yet most carefully regulated collector minerals. Online mineral forums extensively discuss safe storage practices, Geiger counter readings, and the ethics of collecting radioactive specimens. The International Atomic Energy Agency (IAEA) and various national nuclear regulatory bodies provide guidance on radioactive mineral specimen storage. The conversation around autunite in collecting circles mirrors broader societal conversations about nuclear technology: beauty, power, responsibility, and risk.

Unknown

French mineralogical tradition (Autun, Burgundy)

Autunite was first described in 1852 from specimens found near the city of Autun in Burgundy, France. The city, whose name derives from the Roman settlement Augustodunum, has a deep archaeological and natural history tradition. French mineralogists of the mid-19th century, working within the intellectual framework of the Ecole des Mines and the Museum National d'Histoire Naturelle in Paris, systematically catalogued uranium minerals as part of France's broader scientific program. Autunite's discovery coincided with the early decades of uranium science -- the element itself had been identified only 63 years earlier by Martin Heinrich Klaproth in 1789 (Hauy, R. J., "Traite de Mineralogie," 1822; Beudant, F. S., "Traite Elementaire de Mineralogie," 1832). 2. Uranium prospecting lore (Cold War

Sacred Match Notes

When this stone becomes the right door

Sacred Match prescribes Autunite 2 2 10 12H2O when you report:

fear of your own intensity getting flooded by what lights you up feeling bright and unstable at the same time knowing some parts of you need distance, not denial wanting a safer relationship to volatility

Sacred Match prescribes through physiological diagnosis, not preference. It queries whether high charge should be discharged, expressed, or handled with stricter containment. When that triangulation reveals activation levels that exceed current processing capacity, Autunite enters the protocol as a boundary diagnosis. This prescription identifies what cannot be handled by closeness. The nervous system is not wrong to be cautious. Some intensities are real hazards. Autunite is matched when respect, distance, and observation are the corrective pattern, not forced intimacy with volatile material.

Fear of intensity -> accurate threat appraisal -> seeking respectful containment Flooded by what excites you -> overcapacity activation -> seeking distance without shame Bright and unstable -> mixed attraction and alarm -> seeking safer pacing around charge Need for distance -> protective wisdom -> seeking boundaries that preserve contact without exposure Safer relationship to volatility -> regulation through measured proximity -> seeking respect for what is potent

3-Minute Reset

The Green Glow Witness

Honor the green glow you cannot touch.

3 min protocol

1
Place Autunite in a sealed glass display case or behind glass. Do NOT handle with bare hands — this mineral contains uranium and is radioactive. Keep at least 3 feet away. Settle your posture. Let your breath slow.
1 min
2
Observe the vivid yellow-green tabular crystals. Notice the fluorescent quality, the way they seem to hold their own light. Let your eyes soften. Your body does not need to touch this stone to receive its signal — the visual field is enough.
1 min
3
With each exhale, release one thing — a thought, a tension, a worry. The stone holds its own boundaries. You hold yours. Continue breathing. Notice where the body softens first.
1 min
4
After 3 minutes: check in. Has the breath changed? Has the jaw released? That shift — however small — is the protocol complete. The glow witnessed. The body responded. No contact required.
1 min

The #1 Question

Can Autunite go in water?

Water Safety ABSOLUTELY NOT -- RADIOACTIVE. Autunite is water-soluble. It releases uranium into solution readily, contaminating water with both radioactive material and heavy metal toxicity. Uranium in drinking water causes kidney damage at concentrations as low as 30 ug/L (EPA MCL). Never place autunite in water, near water, or anywhere that condensation or humidity could create runoff. Never use for elixirs or gem water. Never use indirect water methods. Autunite specimens should be stored in low-humidity environments to also prevent dehydration damage to the crystal structure. This mineral has NO safe water application whatsoever.

Mineral Distinction

What sets Autunite 2 2 10 12H2O apart

Bright yellow green uranium minerals are easy to blur together, and autunite is commonly mislabeled as torbernite or another similar species while careless sellers skip the one fact that matters most, it is radioactive. What separates them is fluorescence and habit combined with radiation safety: autunite forms thin square to tabular yellow green plates, hardness only 2 to 2. 5, specific gravity about 3.

1 to 3. 2, and many specimens fluoresce vivid green under UV. Torbernite is a copper uranyl phosphate and trends greener, denser, and compositionally different.

Genuine autunite usually appears as flaky mica like plates or crusts that look neon under good light. If it is sold as harmless décor, the seller is not being honest enough. Use a Geiger counter if the practitioner handle multiple uranium minerals, and store specimens in a stable display, not loose in a pocket or bedside bowl.

The color is real, but so is the uranium. Retail fakes are uncommon because the mineral is already niche, yet misidentification among uranium phosphates is common. Accurate labeling matters here because the wrong label is not just a pricing issue here, it is a safety issue.

Care and Maintenance

How to care for Autunite 2 2 10 12H2O

WARNING: Autunite is RADIOACTIVE. Contains uranium. NEVER place in water, gem elixirs, or near food.

NEVER handle without washing hands afterward. Display in a sealed case only. Do not sleep near autunite.

Do not carry in pockets. Store separately from all other stones in a sealed container. This is a display-only specimen for experienced collectors.

The vivid green fluorescence under UV light is the reward; the radioactivity is the boundary.

Crystal companions

What pairs well with Autunite 2 2 10 12H2O

Fluorite **The Observation Window.** Autunite is beautiful because it is unstable and must be approached with respect. Fluorite supports clear observation without impulsive closeness. For studying volatility, fascination, and the parts of yourself the practitioner should witness carefully rather than merge with. Place fluorite at the brow and keep autunite sealed and visible, never handled directly during practice.

Black Tourmaline **The Containment Protocol.** Autunite symbolizes luminous but hazardous material. Black tourmaline reinforces the principle of containment and distance. Best suited to shadow work around attraction to intensity, not for body placement. Keep black tourmaline near the sealed display case or at the doorway of the room where autunite is stored.

Selenite **The Clean Perimeter.** Selenite clarifies the surrounding space so autunite remains an object of observation, not contact. This pairing suits altar or study setups centered on discernment. Place selenite behind or above the sealed specimen, never underneath if moisture is a concern.

Smoky Quartz **The Reality Anchor.** Autunite can provoke fascination with danger, brilliance, and impermanence. Smoky quartz brings the lesson back into the body and the present. Hold smoky quartz with the more active hand while looking at the sealed specimen from a distance.

Pairing Caution Autunite is radioactive and should not be used as a touch stone, body stone, elixir stone, or pillow stone. Keep it sealed, dry, and away from prolonged close contact.

In Practice

How Autunite 2 2 10 12H2O is used

Display and study only. Autunite is radioactive. The use case is awareness: observing fluorescence under UV light from a safe distance teaches about uranium mineralization and the physics of radiation-induced fluorescence.

Do not hold for extended periods. Do not carry. Do not place in living spaces.

The lesson is in the boundary, not the contact.

Verification

Authenticity

Autunite: vivid yellow-green tabular crystals that fluoresce intensely under UV light (bright green). This fluorescence is the single most reliable identification test. Specific gravity 3.

1-3. 2. Tetragonal crystal system with perfect basal cleavage.

RADIOACTIVE: a Geiger counter will register above background. If a yellow-green mineral does not fluoresce under UV, it is not autunite.

Temperature

Natural Autunite 2 2 10 12H2O should usually feel cooler than plastic or resin on first touch and warm more slowly in the hand.

Scratch logic

Use 2 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 on crystal faces; dull on massive or earthy forms surface quality rather than a painted or plastic shine.

Weight and density

The listed specific gravity is 3.1--3.2. If a specimen feels unusually light for its size, it may deserve a second look.

Geographic Origins

Where Autunite 2 2 10 12H2O forms in the world

Autun, France is the type locality (namesake). Portuguese autunite from Urgeirica mines was historically important for uranium prospecting. USA deposits in the Colorado Plateau and New England pegmatites produce collector specimens.

DR Congo's Shinkolobwe mine produced some of the most fluorescent examples. All localities share the requirement: uranium-bearing geological environments with phosphate-rich groundwater.

FAQ

Frequently asked

What is Autunite?

Autunite is classified as a Autunite belongs to the autunite group of hydrated uranyl phosphate/arsenate minerals. It dehydrates readily in air, losing water molecules and transforming to meta-autunite (Ca(UO2)2(PO4)2 . 2--6H2O), which has a different crystal structure (orthorhombic). Specimens often arrive partially dehydrated. The intensely fluorescent yellow-green color is caused by the uranyl ion (UO22+), not by radioactive decay itself -- the color is a chemical property of uranium's bonding configuration (Nakata et al., 2013; Rout et al., 2017).. Chemical formula: Ca(UO2)2(PO4)2 . 10--12H2O -- hydrated calcium uranyl phosphate. Mohs hardness: 2--2.5 (extremely soft and fragile). Crystal system: Tetragonal (orthorhombic when partially dehydrated to meta-autunite).

What is the Mohs hardness of Autunite?

Autunite has a Mohs hardness of 2--2.5 (extremely soft and fragile).

Can Autunite go in water?

What crystal system is Autunite?

Autunite crystallizes in the Tetragonal (orthorhombic when partially dehydrated to meta-autunite).

What is the chemical formula of Autunite?

The chemical formula of Autunite is Ca(UO2)2(PO4)2 . 10--12H2O -- hydrated calcium uranyl phosphate.

How does Autunite form?

Formation Story Autunite forms in the supergene oxidation zones of uranium deposits, where uranium-bearing minerals are chemically dismantled by oxygen-rich groundwater and their uranium is transported, transformed, and reprecipitated in new mineral forms. The primary uranium source is typically uraninite (UO2) or coffinite (USiO4), minerals that crystallized deep in the crust under reducing conditions. When tectonic uplift, erosion, or mining exposes these minerals to surface-derived oxygenated

References

Sources and citations

Rout, Annapurna, Panigrahi, Bhabani Shankar, Nayak, Chandrani, Bhattacharyya, Dibeyndu, Jha, Shambhu Nath. (2017). Uranium speciation and its site occupancy in alkaline‐earth borophosphates. Journal of the American Ceramic Society. [SCI]
DOI: 10.1111/jace.14800
Nakata, Masataka, Sasao, Eiji, Komuro, Kosei. (2013). Calcium and Magnesium‐bearing Sabugalite from the <scp>T</scp>ono Uranium Deposit, <scp>C</scp>entral <scp>J</scp>apan. Resource Geology. [SCI]
DOI: 10.1111/rge.12019
Wang, Hong, Li, Liang, Fan, Xiaolin, Zhang, Yuhao, Lu, Qing et al. (2024). Health Implications of Depleted Uranium: An Update. Journal of Applied Toxicology. [SCI]
DOI: 10.1002/jat.4720
GEISSLER, A., MERROUN, M., GEIPEL, G., REUTHER, H., SELENSKA‐POBELL, S. (2009). Biogeochemical changes induced in uranium mining waste pile samples by uranyl nitrate treatments under anaerobic conditions. Geobiology. [SCI]
DOI: 10.1111/j.1472-4669.2009.00199.x
Gadd, Geoffrey Michael, Rhee, Young Joon, Stephenson, Karen, Wei, Zhan. (2011). Geomycology: metals, actinides and biominerals. Environmental Microbiology Reports. [SCI]
DOI: 10.1111/j.1758-2229.2011.00283.x

Closing Notes

Autunite 2 2 10 12H2O

Uranium phosphate that fluoresces vivid green under UV light. Beautiful and radioactive. The science documents how calcium uranyl phosphate crystallizes in oxidation zones of uranium deposits.

The practice is observation only, sealed behind glass. Some minerals teach through distance.

Field Notes