Montana Moss Agate is a Moss Agate found exclusively in the alluvial gravels of the Yellowstone River (Montana, USA). This semi-precious stone is mostly yellow or white, with prominent, dark, tree-like or moss-like markings. The attractive and unusual appearance is a result of volcanic activities and lava flows in Yellowstone National Park.
Hardness:
6.5 - 7
Density:
2.55 - 2.7 g/cm³
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Properties
Health Risk
Values
Market Price
How to Care
Characteristics
Cultural
Common Questions
General Info About Montana Moss Agate
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Physical Properties of Montana Moss Agate
Luster
Waxy, Vitreous
Diaphaneity
Translucent
Colors
Gray, white, brown, black, red, orange, yellow
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
None
Fracture
Conchoidal, Subconchoidal
Streak
Green
Crystal System
Trigonal
Hardness
6.5 - 7 , Hard
Density
2.55 - 2.7 g/cm³, Normal Weight
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Chemical Properties of Montana Moss Agate
Chemical Classification
Silicates
Formula
SiO2
Elements listed
Si, O
Optical Properties of Montana Moss Agate
Refractive Index
1.530-1.543
Birefringence
0.003-0.009
Pleochroism
None
Dispersion
0.013
Optical Character
Biaxial positive
Health Risk of Montana Moss Agate
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What is the hazards of Montana Moss Agate?
Harm Type
Physical Toxicity
Montana Moss Agate in powdered form can be toxic due to its Crystalline Silica content.
Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
How to prevent the risks of Montana Moss Agate?
Avoid long-term inhalation of its dust!
Montana Moss Agate is typically non-toxic unless it's in powder form. Long-term exposure to finely ground powder may lead to silicosis. Therefore, when cutting or polishing montana Moss Agate, be sure to wear a dust mask to avoid inhaling its dust.
Discover the Value of Montana Moss Agate
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Rarity
Uncommon
Collection Recommendation
4.2 out of 5
Popularity
4.1
Aesthetic
4.5
Rarity
3.9
Sci-Cultural Value
3.9
The Market Price of Montana Moss Agate
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Rough/Tumbled Price
Smaller Than Hand (0-1.5in)
$4 - $40
Close Hand (1.5-3in)
$35 - $65
Equal To Hand (3-6in)
$65 - $110
Bigger Than Hand (>6in)
$110
How to Care for Montana Moss Agate?
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Durability
Durable
Scratch resistance
Good
Toughness of Montana Moss Agate
Poor
Fair
Good
Excellent
Montana Moss Agate has excellent toughness due to its microcrystalline structure, lacking cleavage which makes it resistant to chipping and cracking, ideal for daily use.
Stability of Montana Moss Agate
Sensitive
Stable
Montana Moss Agate is suitable for daily use given its overall resistance to water, sunlight, dry conditions, and ability to have stains removed. Caution should be taken with heat and chemical exposure.
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Characteristics of Montana Moss Agate
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Formation of Montana Moss Agate
It was originally formed in the Yellowstone National Park area of Wyoming as a result of volcanic activity.
Cultural Significance of Montana Moss Agate
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Distribution of Montana Moss Agate
In the U.S., Montana moss agate is found in the alluvial gravels of the Yellowstone River and its tributaries between Sidney and Billings, Montana.
Healing Properties of Montana Moss Agate
Montana Moss Agate is considered a powerful healing stone that works on all of the chakras to balance the mind, body, and spirit. It removes negative energy and allows positive energy to flow through. It may help with the emotional healing of grief and despair and is often used during meditation to restore feelings of hope and enthusiasm.
Common Questions People Also Ask
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