Snowflake Obsidian
What is Snowflake Obsidian?
Snowflake Obsidian is a volcanic glass that contains inclusions of white or gray cristobalite, which create the "snowflake" patterns. It forms from rapidly cooled lava, preventing crystal growth and resulting in a glassy texture. The snowflake patterns are formed by the crystallization of cristobalite, a high-temperature polymorph of quartz, within the obsidian. This gemstone is often used for ornamental purposes and is believed by some to have metaphysical properties.
Optical Properties
- Refractive Index
- 1.48-1.51
- Birefringence
- None
- Pleochroism
- None
- Optical Character
- Isotropic
- Dispersion
- None
Discover Values
Snowflake Obsidian Market Value Calculator
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Snowflake Obsidian Localities Map
See where Snowflake Obsidian is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black with white or gray inclusions
- Hardness (Mohs)
- 5-5.5
- Density
- 2.35-2.6 g/cm³
- Luster
- Vitreous to dull
- Crystal System
- Amorphous
Chemical Properties
- Chemical Formula
- SiO2 (with inclusions of cristobalite)
- Elements
- Si, O
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