Buy Ossidiana Gems(213) |
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Unico |
Coppie |
Lotti |
Sfaccettato |
Taglio a cabochon |

Taglio a fantasia Multicolore Ossidiana fiocco di neve

Ovale Nero Ossidiana

Ovale Multicolore Ossidiana

Pera Dorato Ossidiana

Cuscino Dorato Ossidiana

Ovale Dorato Ossidiana

Pera Dorato Ossidiana

Ovale Dorato Ossidiana

Pera Dorato Ossidiana

Pera Multicolore Ossidiana

Ovale Dorato Ossidiana

Pera Dorato Ossidiana

Pera Nero Ossidiana

Pera Nero Ossidiana

Pera Dorato Ossidiana

Ovale Dorato Ossidiana

Pera Dorato Ossidiana

Ovale Dorato Ossidiana

Ovale Nero Ossidiana

Pera Multicolore Ossidiana fiocco di neve

Cuscino Dorato Ossidiana
About 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.
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