This natural Gray-White Black Snowflake Obsidian originates from Mexico and its weight is about 10 carats. The measurements are 24.11mm x 11.91mm x 5.92mm (length x width x depth). The shape/cut-style of this Snowflake Obsidian is Marquise Cabochon. This 9.87ct Snowflake Obsidian gem is available to order and can be shipped anywhere in the world. Gemstone Certification can also be provided as an optional service.
About Snowflake Obsidian
Obsidian is a naturally occurring volcanic glass. It is formed when felsic lava extruded from a volcano cools without crystal growth. Obsidian has been known since prehistoric times, and has some fascinating properties as well as some important practical uses. In addition to its use as a gemstone, obsidian has been used in cardiac surgery, as well-crafted obsidian blades have a cutting edge many times sharper than high-quality steel surgical scalpels.
In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern, and this is known in the gem trade as snowflake obsidian.
These guys at Gem Select seem to be honest and straightforward to deal with, compared to many other sites in the gemstone business. They have a guaranteed return policy if the customer isn't happy with their purchase, but I haven't tested it yet.