Description
Snowflake Obsidian Gemstone 8.02ct
Description
This Snowflake Obsidian is natural gemstone which is the Black with white spots colour, it’s Originates from Mexico and its exact weight is 8.02ct the measurements are 17.61×12.61×5.67mm, the shape and cut of this stone are Pear Cabochon. It’s graded Opaque and clarity is good. This 8.02ct Black with white spots colour natural Snowflake Obsidian Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.
Details
Summary No | AK03299 |
Species | Natural Snowflake Obsidian |
Weight | 8.02ct |
Shape/cut | Pear Cabochon |
Colour | Black with white spots |
Dimension | 17.61×12.61×5.67mm |
Clarity | Good |
Transparency | Opaque |
Origin | Mexico |
Treatment | None |
Snowflake Obsidian Gemstone 8.02ct
Properties of Snowflake Obsidian
Chemical Composition:70-75% SiO2 + MgO, Fe3O4 Volcanic, amorphous, siliceous glassy rock
Hardness: 5 – 5.5
Specific Gravity (Density): 2.35 – 2.60
Refractive Index: 1.45 – 1.55
About Snowflake Obsidian
Snowflake Obsidian is a natural volcanic glass containing white ‘snowflake’ crystal patterns of the mineral cristobalite, originated due to the partial crystallisation of the glass. Obsidian is mineral-like, but not a true mineral because as a glass it is not crystalline. It is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition induces a high viscosity and polymerization degree of the lava. It can be found in Argentina, Armenia, Azerbaijan, Australia, Canada, Chile, Georgia, Greece, El Salvador, Guatemala, Iceland, Italy, Japan, Kenya, Mexico, New Zealand, Papua New Guinea, Peru, Scotland, Turkey and the United States.