Crystalis Crystal Dictionary

Mahogany Obsidian

The Warm Protector

Anger and grounding keep arriving together and you cannot figure out which one to trust. Mahogany obsidian streaks reddish-brown iron patterns through black volcanic glass, warmth embedded in something that cooled too fast. The iron left a mark the glass kept.

Intent

Protection & Grounding
Confidence & PowerHeart HealingBreaking Resistance
Somatic note

Mahogany Obsidian bridges the root and sacral chakras, combining the grounding properties of black obsidian with the warming, vitalizing influence of iron oxide. In...

Overview

The heart of the entry

Anger and grounding are trying to share the same room. Mahogany obsidian keeps volcanic black glass streaked with...

Mineralogy

Obsidian

Obsidian that could not decide between fury and patience. Mahogany obsidian is volcanic glass with concentrated...
Mahogany Obsidian specimen

Formation

How it forms

Amorphous system — earth conditions, structure, and place.
No long-range crystallographic orderAmorphous · Mahogany Obsidian

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

What your body knows

Protection & Grounding

Mahogany Obsidian bridges the root and sacral chakras, combining the grounding properties of black obsidian with the warming, vitalizing influence of iron oxide. In...

The Meaning

Mahogany Obsidian in the Crystalis dictionary

Anger and grounding are trying to share the same room.

Mahogany obsidian keeps volcanic black glass streaked with reddish-brown iron-rich zones, heat written straight into shadow. The stone never lets force and ballast fully separate.

Fire lands better once it has weight.

Stone Lore

Stories carried through time

Cultural notes are presented as tradition and historical context — stories carried through time.

Mesoamerican Civilizations

The Mesoamerican Obsidian Working Tradition

Obsidian was the most strategically important mineral in Mesoamerican civilizations, and mahogany obsidian -- the iron-oxide-streaked variety displaying reddish-brown and black banding -- occurred alongside the more common black variety at volcanic sources across central Mexico. The Aztec empire controlled obsidian trade routes radiating from sources including Cerro de las Navajas (Hill of Knives) in Hidalgo and deposits in Jalisco and Puebla.

Obsidian served as currency, weaponry (the macuahuitl sword embedded obsidian blades), surgical instruments, mirrors used in divination practices, and ornamental objects. Archaeological evidence confirms obsidian working spanning over 3,000 years across Olmec, Maya, Teotihuacan, and Aztec cultures.

c. 1500 BCE-1521 CE

Historical note

The Iron Inclusion Color Mechanism

Geological analysis established that mahogany obsidian's distinctive reddish-brown streaks result from microscopic inclusions of iron oxide (hematite and magnetite) distributed in flow bands within the volcanic glass matrix. The banding...

Volcanological Science · 19th-20th century

Historical note

The Glass Buttes Collecting Tradition

Glass Buttes in Lake County, Oregon became a notably visited obsidian collecting site in North America beginning in the mid-20th century, producing black, mahogany, rainbow, and sheen varieties of obsidian from exposed volcanic flows. The...

Oregon Lapidary Tradition · Mid-20th century-present

Ritual history

The Root Strength Practice

Crystal practitioners assigned mahogany obsidian specifically to root chakra work that addressed shame and stored physical tension, distinguishing it from black obsidian's more confrontational protective applications. The warm brown...

Contemporary Crystal Practice · 1990s-present

Earth Record

Mineralogy and formation

Variety of Obsidian

Obsidian that could not decide between fury and patience. Mahogany obsidian is volcanic glass with concentrated inclusions of iron oxide, specifically hematite and magnetite nanoparticles, that precipitated during devitrification of the original rhyolitic melt. The mahogany swirls are not layers. They are domains where iron migrated and nucleated into reddish-brown clusters while the surrounding glass stayed black.

This happens in flows that cooled slowly enough for partial crystallization but fast enough to prevent full devitrification. Found extensively in Oregon, Mexico, and Armenia. The glass matrix is identical to standard obsidian, about 70 percent silica, but those iron oxide blooms give it a warmth that pure obsidian refuses.

No long-range crystallographic orderAmorphous · Mahogany Obsidian

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

Amorphous structure

Chemical Formula
SiO2 (volcanic glass + Fe)
Crystal System
Amorphous
Mohs Hardness
5
Specific Gravity
2.4-2.6
Luster
Vitreous
Color
Black with reddish-brown mahogany patches
IMA Status
variety
IMA Number
Not IMA-approved
01

Mineral conditions gather

02

Structure begins to crystallize

03

Mahogany Obsidian records place and pressure

MexicoUSAJapan

Telling it apart

Both are volcanic glass with the same base composition, but mahogany obsidian contains concentrated iron oxide inclusions that create warm red-brown patches. Energetically, mahogany obsidian is considered gentler. it grounds with warmth rather than confrontation.

Black obsidian is the "truth mirror" that forces shadow work; mahogany obsidian is the "warm hearth" that invites you to come home to your body.

Spotting the real thing

Conchoidal Fracture All genuine obsidian breaks with conchoidal (shell-like) fracture, smooth, curved surfaces without flat planes or stepped breaks. On raw specimens, look for these curved fracture surfaces. They should be glassy and sharp. Manufactured glass can also show conchoidal fracture, but obsidian's fracture surfaces have a distinctive depth and luster that differs from bottle glass.

Color Pattern Depth The mahogany patches in genuine mahogany obsidian are three-dimensional, they extend through the body of the stone, not just on the surface. If you can see into a translucent area at the edge, the color patterns should continue into the interior. Painted or surface-treated glass shows color only at the surface. The mahogany and black zones should blend organically at their boundaries, not show sharp, painted edges.

Temperature Response Obsidian (like all glass) feels cool to the touch initially but warms quickly to body temperature.

Energetic Associations

How people most often work with Mahogany Obsidian

Protection & Grounding

Used as a reminder to keep boundaries clear while staying present in the body.

Confidence & Power

A traditional association that gives Mahogany Obsidian a clear intention pathway in practice.

Heart Healing

Used as a companion for slow repair, honest feeling, and gentleness around loss.

Breaking Resistance

A traditional association that gives Mahogany Obsidian a clear intention pathway in practice.

Primary pathway: Protection & Boundaries

ConfidenceHeart HealingProtection

Charged & on alert

The Brittle Armor

You are defended but not strong. There is a difference, and your body knows it even if your mind has conflated the two. Somewhere along the way, protection became rigidity; the walls you built to survive are now preventing you from living. Your sympathetic system maintains the armor at enormous energetic cost: scanning for threats, bracing for impact, holding muscles tight in patterns so old they feel like posture rather than defense.

You are exhausted by your own protection. Mahogany Obsidian offers a different model: the iron in its matrix is not a wall. It is warmth distributed through strength. Iron in blood does not shield; it nourishes. This stone suggests that the strongest protection is not the one that keeps everything out but the one that keeps the warmth in.

Chronic sympathetic defensive posturing creates muscular tension patterns that become structurally embedded; the body literally armors itself through sustained muscle contraction, particularly in the jaw, shoulders, hip flexors, and lower back. Mahogany Obsidian's dual root-sacral activation addresses both the grounding deficit (root) and the warmth deficit (sacral) that underlie the need for armor. When the base feels solid and warm, the armor becomes optional.

Shut down & far away

The Cold Foundation

The ground beneath you does not feel trustworthy. Not because anything dramatic is happening; there is no earthquake, no visible threat; but because the nervous system lost its sense of contact with the earth somewhere along the way, and now everything feels subtly precarious. You walk through the day with a low-grade vertigo that is not physical but existential. The root chakra is dim.

The sacral center is cold. The lower body feels like it belongs to someone else. This is dorsal vagal withdrawal from the foundational centers; the nervous system retreating upward into the head, abandoning the pelvis and legs and belly. Mahogany Obsidian is the stone that calls the nervous system back downward. The black glass says: the ground is here. The mahogany says: and it is warm.

Dorsal vagal withdrawal from the lower body manifests as numbness, disconnection from physical sensation below the waist, and a subjective sense of floating or groundlessness. The metabolic shutdown conserves energy by dampening proprioceptive and interoceptive signals from the legs, feet, pelvis, and lower abdomen. Mahogany Obsidian's iron-rich warmth in the sacral and root regions provides a somatic signal that the lower body exists and is safe to inhabit.

Settled & connected

The Strength Question

You do not know what strength feels like without aggression. Your models of personal power have always involved dominance, control, or at minimum a sharp edge that keeps others at bay. When you try to be gentle, you feel weak. When you try to be strong, you feel mean. The nervous system oscillates between sympathetic hardness and dorsal collapse because it does not have a template for strength that is also kind.

Mahogany Obsidian is that template. The obsidian matrix provides genuine hardness; this glass can cut through anything. But the iron patches provide genuine warmth. They coexist without compromising each other. Hardness and warmth, in the same stone, without either diminishing the other. That is the model.

The inability to access gentle strength reflects a lack of ventral vagal modulation of the sympathetic system. When ventral tone is sufficient, the sympathetic system can activate in service of play, passion, and protective assertiveness without tipping into aggression. Mahogany Obsidian supports this modulated activation by providing both the root stability (obsidian) and the sacral warmth (iron) that ventral vagal regulation requires as a foundation.

Settled & connected

The Warm Ground

You are standing on solid ground and you know it in your legs, your pelvis, your feet. Not because the world has become safe; it has not, it never fully does; but because your own foundation has become trustworthy. You can be gentle because you are strong. You can be open because you are rooted. The lower chakras are warm and stable, humming with a quiet frequency that does not demand attention or announce itself.

This is the ventral vagal state at the root and sacral: embodied, present, warm, and without apology. Mahogany Obsidian in this state is not medicine. It is a touchstone; the thing you carry in your pocket that reminds you what you feel like when you are home in your own body.

Full ventral vagal engagement at the root and sacral centers produces grounded warmth, embodied presence, and the capacity for firm boundaries without rigidity. The enteric nervous system (gut brain) is in coherent communication with the central nervous system. Interoceptive awareness of the lower body is clear and comfortable. Mahogany Obsidian resonates with this state as an amplifier and anchor.

These associations come from tradition and reflective practice — a way of working with the stone, not a medical prescription.

Somatic Practice

Simple ways to work with Mahogany Obsidian

Hold

Carry Mahogany Obsidian in a pocket or place it over the heart center during a pause.

Meditate

Let the stone become a quiet tactile anchor while the breath slows.

Breathe

Breathe in softness. Breathe out tension. Keep the practice simple.

Journal

Write with Mahogany Obsidian nearby to name the feeling without forcing a conclusion.

Bodywork

Rest the stone near the chest, hand, or bedside as a reminder to soften.

Environment

Place it where you want a visual cue for care, repair, or steadiness.

Field Instruction

The Hearth

The Hearth Protocol

3 min protocol
  1. 1

    Root Contact (20 seconds)Sit in a chair with feet flat on the floor. Place the mahogany obsidian between your feet on the ground, or hold it against your lower belly just below the navel. Close your eyes. Feel the stone's weight. Obsidian is dense for glass (specific gravity 2.4-2.6), and the iron inclusions add a subtle warmth that most people notice within seconds. Let the weight and warmth register in the lower body. This is the hearth being lit -- not a bonfire, not a blaze, but a contained warmth in the foundation of the house.

  2. 2

    Iron Breath (40 seconds)With eyes closed, Inhale through the nose for 4 counts. Hold for 7 counts. Exhale through the mouth for 8 counts. Three full cycles. With each cycle, the warmth spreads further through the lower body. You are not creating energy. You are reminding the lower centers that they contain iron, that they are warm by nature, that the foundation was never meant to be cold.

  3. 3

    Strength Without Edge (60 seconds)Hold the mahogany obsidian in both hands at belly height. Feel the smooth glass surface -- the hardness of obsidian, the glass that can be knapped into the sharpest edge in nature. Now run your thumb across a mahogany patch and feel the warmth of the iron oxide beneath the same hard surface. Hardness and warmth, sharing the same body. Say silently: "I am allowed to be strong and warm at the same time." Three times. Let each repetition land in the belly, not the head. This is not an affirmation -- it is a description of what the stone has already demonstrated. The obsidian is hard. The iron is warm. They are the same stone.

  4. 4

    Foot Grounding (40 seconds)Place the stone on the floor and rest one bare foot on top of it (or press through a sock). Feel the stone's hardness and warmth through the sole of the foot. The foot's proprioceptors register the surface -- cool glass, warm iron patches, the subtle texture variations. Press gently, feeling the ground through the stone. You are standing on the earth's fire, cooled to body temperature. Ten seconds on one foot, then switch. The contact through the sole is direct -- no interpretation needed. The body knows what ground feels like.

  5. 5

    Warm Pocket (20 seconds)Pick up the stone and place it in a hip pocket or hold it against the lower abdomen. As you stand and move into your day, let it be a warm anchor in the lower body -- a reminder that your foundation is not cold, your strength is not harsh, and your protection does not require you to be unapproachable. The hearth is lit. The house is warm. Everything else can proceed from there.

Stone Intelligence

The fact that makes Mahogany Obsidian memorable

The iron oxide in your mahogany obsidian oxidized at temperatures exceeding 700 degrees Celsius inside a lava flow that was moving, cooling, and crystallizing simultaneously. The hematite formed where oxygen reached the iron; the magnetite formed where it did not. Both were frozen in place when the glass solidified — warmth trapped in hardness, color trapped in darkness. Crystalis documents both the volcanology and the somatic practice because the stone never separated them.

The lava flowed, the iron oxidized, and what cooled was a material that is both the sharpest edge in nature and one of the warmest stones you can hold. That is not contradiction. That is integration.

SCI

A novel approach in the mineralogy of Carpathian mahogany obsidian using complementary methods

Quaternary International · 2018Read source

SCI

A dual beam SEM-based EDS and micro-XRF method for the analysis of large-scale Mesoamerican obsidian tablets

Journal of Archaeological Science: Reports · 2021Read source

SCI

Intrasource chemical variability of artefact-quality obsidians from the Casa Diablo area, California

Journal of Archaeological Science · 1994Read source

SCI

Fragmentation processes in explosive volcanic eruptions

Sedimentation in Volcanic Settings · 1991Read source

Ritual Use

From reference to practice

Mahogany Obsidian in ritual practice

Mahogany Obsidian bridges the root and sacral chakras, combining the grounding properties of black obsidian with the warming, vitalizing influence of iron oxide. In somatic practice, this creates a distinctly different quality from pure black obsidian. where black obsidian is sharp, confrontational, and unflinching, mahogany obsidian is firm but warm. It grounds without chilling. It protects without isolating.

The Brittle Armor You are defended but not strong. There is a difference, and your body knows it even if your mind has conflated the two. Somewhere along the way, protection became rigidity. the walls you built to survive are now preventing you from living. Your sympathetic system maintains the armor at enormous energetic cost: scanning for threats, bracing for impact, holding muscles tight in patterns so old they feel like posture rather than defense.

You are exhausted by your own protection. Mahogany Obsidian offers a different model: the iron in its matrix is not a wall. It is warmth distributed through strength. Iron in blood does not shield. it nourishes. This stone suggests that the strongest protection is not the one that keeps everything out but the one that keeps the warmth in.

Polyvagal context Chronic sympathetic defensive posturing creates muscular tension patterns that become structurally embedded. the body literally armors itself through sustained muscle contraction, particularly in the jaw, shoulders, hip flexors, and lower back. Mahogany Obsidian's dual root-sacral activation addresses both the grounding deficit (root) and the warmth deficit (sacral) that underlie the need for armor. When the base feels solid and warm, the armor becomes optional.

Sacred Match

Sacred Match prescribes Mahogany Obsidian when you report:

  • Confusing hardness with strength
  • Feeling ungrounded or disconnected from the lower body
  • Protective walls that have become prisons
  • Need for warmth in the grounding practice
  • Difficulty being firm without being aggressive
  • Cold sensation in the root or sacral center
  • Wanting obsidian energy without obsidian intensity

Mahogany Obsidian finds you when the grounding you need cannot come from a cold stone. When black obsidian feels too sharp, too confrontational, too much like the mirror you are not ready to face. This stone carries the same volcanic authority but wraps it in iron-warmed earth tones. The mahogany patches are the stone's way of saying: strength does not require severity. You can be grounded and warm at the same time. You can be protected and open at the same time. The iron in this glass is the same iron in your blood. It is already part of you.

Take Sacred Match

Pairings Recipe File

Stones and herbs that harmonize with Mahogany Obsidian

Crystalis crystal and herb pairing recipe box
Pairings are treated like a recipe file: clear use, method, and safety.

Crystal Companion

Mahogany Obsidian + Amethyst

Use when
You want to layer the primary intention with another supportive tone.
How to work with it
Place the stones together during meditation, journaling, or a short reset.
Safety
Use as a reflective practice tool, not as a medical substitute.

Crystal Companion

Mahogany Obsidian + Rhodonite

Use when
You want to layer the primary intention with another supportive tone.
How to work with it
Place the stones together during meditation, journaling, or a short reset.
Safety
Use as a reflective practice tool, not as a medical substitute.

Crystal Companion

Mahogany Obsidian + Clear Quartz

Use when
You want to layer the primary intention with another supportive tone.
How to work with it
Place the stones together during meditation, journaling, or a short reset.
Safety
Use as a reflective practice tool, not as a medical substitute.

Crystal Companion

Mahogany Obsidian + Black Tourmaline

Use when
You want to layer the primary intention with another supportive tone.
How to work with it
Place the stones together during meditation, journaling, or a short reset.
Safety
Use as a reflective practice tool, not as a medical substitute.

Red Jasper

Red jasper amplifies mahogany obsidian's root-sacral grounding with slow, steady earth energy. While mahogany obsidian provides the warmth and the volcanic edge, red jasper provides the patience and endurance. Together they create a foundation that is warm (mahogany obsidian), steady (red jasper), and deeply rooted in the earth. This pairing is for long-term grounding work where the goal is not a quick fix but a permanent change in the felt sense of stability.

Carnelian

Carnelian takes mahogany obsidian's sacral warmth and turns it into creative fire. While mahogany obsidian warms the foundation, carnelian activates the creative and sexual energy centers above it. This pairing moves energy upward from ground to creation -- from "I am stable" to "I am creating from stability." For people whose creativity has been frozen by insecurity or whose passion has been dimmed by excessive caution.

Black Tourmaline

Black tourmaline adds electromagnetic protection to mahogany obsidian's warm grounding. This pairing creates a protection grid that is both soft (mahogany obsidian) and sharp (tourmaline) -- the velvet glove over the iron fist. For people who work in energetically draining environments and need protection that does not make them feel isolated or armored.

Tiger's Eye

Tiger's eye connects the solar plexus confidence center with mahogany obsidian's root-sacral foundation. This pairing builds personal power from the ground up: stable legs (mahogany obsidian) supporting a confident belly (tiger's eye). For people who know what they want but cannot seem to stand their ground when challenged, or who feel their conviction evaporate under pressure.

Care & Cleansing

How to keep Mahogany Obsidian in good condition

Water Safe?

Water safe

This stone is generally safe for short water contact, though polishing, fractures, and metal settings can still change how a specimen behaves.

Sunlight Safe?

Sunlight safe

Tolerates daylight; safe to charge or display in the sun.

Authenticity

What to check

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

The #1 Question Can Mahogany Obsidian Go in Water? YES — WATER SAFE Mahogany Obsidian can go in water. Mahogany Obsidian is volcanic glass (SiO 2 ) — the same base material as regular obsidian, which is chemically inert in water. At Mohs 5-5. 5, it is hard enough to resist surface erosion, and polished specimens are non-porous. The iron oxide inclusions (hematite and magnetite) are stable minerals that will not dissolve or leach in water.

Running water rinse: completely safe Brief soaking (up to 30 minutes): safe Extended soaking: safe, though unnecessary Salt water: use with caution — prolonged salt water contact can deposit salt in surface micro-textures Gem water preparation: safe for direct method One note: raw or rough mahogany obsidian specimens may have sharp edges due to conchoidal fracture. Handle carefully when wet — the combination of sharp glass edges and slippery water is a safety concern for fingers, not for the stone.

Temperature

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

Scratch logic

Use 5 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 surface quality rather than a painted or plastic shine.

Weight and density

The listed specific gravity is 2.4-2.6. If a specimen feels unusually light for its size, it may deserve a second look.

My Field Guide

Your private record and next steps

Crystalis field notebook with botanical sketches and rose quartz

Journal

Add this stone to your private collection, then log what happened when you worked with it.

Shared Notes

Read public practice logs and pattern notes from the Crystalis community.

Open shared notes

Sacred Match

Find crystal, herb, and intention pairings that resonate with your season.

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Shop Mahogany Obsidian

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Frequently Asked

Questions people ask about Mahogany Obsidian

What is Mahogany Obsidian?

Mahogany Obsidian is a naturally occurring volcanic glass (SiO2) with distinctive red-brown to mahogany-colored patches caused by concentrated inclusions of iron oxide (hematite and magnetite). It forms from rapidly cooling felsic lava and registers 5-5.5 on the Mohs scale. The combination of black obsidian matrix with warm reddish-brown swirls gives it a grounding yet gentle energy that works the root and sacral chakras.

Can Mahogany Obsidian go in water?

Yes. Mahogany Obsidian is water safe. As a volcanic glass (SiO2) with Mohs 5-5.5 hardness, it is chemically inert, non-porous on polished surfaces, and will not degrade from water contact. Brief rinses, soaking, and direct-method gem water preparation are all acceptable. Avoid salt water for prolonged periods.

What is the difference between Mahogany Obsidian and regular obsidian?

Both are volcanic glass with the same base composition (SiO2), but Mahogany Obsidian contains concentrated inclusions of iron oxide minerals (hematite and magnetite) that create the characteristic red-brown to mahogany patches. Regular black obsidian has more uniform composition without these iron-rich zones. Energetically, Mahogany Obsidian is considered gentler and warmer than black obsidian, working the sacral chakra alongside the root.

What chakra is Mahogany Obsidian?

Mahogany Obsidian works primarily with the root chakra (1st, Muladhara) and the sacral chakra (2nd, Svadhisthana). The black obsidian matrix provides root grounding while the iron-rich mahogany patches activate the sacral center's connection to warmth, creativity, and embodied strength. This dual-chakra action gives it a uniquely gentle grounding quality.

Is Mahogany Obsidian good for protection?

Yes. Like all obsidian varieties, Mahogany Obsidian is valued for energetic protection. However, its protective quality is distinct from black obsidian's sharp, boundary-setting energy. Mahogany Obsidian protects through strength rather than shielding — it fortifies the root and sacral centers so that the person carrying it feels more solid and less permeable, rather than creating an external barrier.

Sources & Citations

Where this entry can be checked

Crystalis source notebook and citation desk

Back Matter

Readable for people. Structured for AI search.

Sources stay visible in the page so readers, search engines, and answer systems can follow the evidence trail.
  1. 01

    SCI

    A novel approach in the mineralogy of Carpathian mahogany obsidian using complementary methods

    Kasztovszky Z., Lázár K., Kis V.K., Len A., Füzi J., Markó A., Biró K.T. (2018). A novel approach in the mineralogy of Carpathian mahogany obsidian using complementary methods. Quaternary International. [SCI]DOI 10.1016/j.quaint.2017.12.028
  2. 02

    SCI

    A dual beam SEM-based EDS and micro-XRF method for the analysis of large-scale Mesoamerican obsidian tablets

    Sharps M.C., Martinez M.M., Brandl M., Lam T., Vicenzi E. (2021). A dual beam SEM-based EDS and micro-XRF method for the analysis of large-scale Mesoamerican obsidian tablets. Journal of Archaeological Science: Reports. [SCI]DOI 10.1016/j.jasrep.2020.102781
  3. 03

    SCI

    Intrasource chemical variability of artefact-quality obsidians from the Casa Diablo area, California

    Hughes, R.E. (1994). Intrasource chemical variability of artefact-quality obsidians from the Casa Diablo area, California. Journal of Archaeological Science. [SCI]DOI 10.1006/jasc.1994.1026
  4. 04

    SCI

    Fragmentation processes in explosive volcanic eruptions

    Heiken, G. & Wohletz, K. (1991). Fragmentation processes in explosive volcanic eruptions. Sedimentation in Volcanic Settings. [SCI]DOI 10.2110/pec.91.45.0019