Brown Snowflake Obsidian
A variety of Obsidian
What is Brown Snowflake Obsidian?
A variety of volcanic glass, Brown Snowflake Obsidian is a type of jasper that has been melted by exposure to geothermal heat. Like other forms of Snowflake Obsidian, it is adorned with snowflake or star-shaped patterns that are actually cross-sections of spherical quartz clusters inside the obsidian. The quartz, which grows in needle shapes, is known is Cristobalite.
Optical Properties
- Refractive Index
- 1.450-1.550
- Pleochroism
- None
- Optical Character
- Isotropic
- Dispersion
- 0.01
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Brown Snowflake Obsidian Localities Map
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Key Characteristics
Composition of Brown Snowflake Obsidian
Obsidian, Cristobalite
Health & Safety Information
- ⚠️Harm Reason: Brown Snowflake Obsidian in powdered form can be toxic due to its Crystalline Silica content.
- ⚠️Physical Toxicity: 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 Brown Snowflake Obsidian?
Quick Facts
Physical Properties
- Hardness (Mohs)
- 5 - 5.5
- Density
- 2.33 - 2.6 g/cm³
- Luster
- Vitreous
Also Known As
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