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.
آراء العملاء المعتمدين
تقييم عام -> 8
I decided recently to start a gemstone collection! I searched online for a reputable gem merchant and found gem select! Their selection is gorgeous and I’m excited to receive my first package! Checkout was a breeze!
My experience with GemSelect has been non-laboring and satisfying. The gem was perfectly and safely packaged. I look forward to doing more transactions in the future!
Its my first time ordering, I've known about the site a long time and have been waiting to be in the market for gems. I'm finally taking the jump into becoming a jewler and I hope the gem stones are of quality