Snowflake Obsidian 8x10-9x13mm Side Drilled Pebble - 15-16 Inch Stringing-Materials-Chain ” Tourmaline began to be

” Tourmaline began to be highly prized after George Kunz

is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals

white and reddish brown in speckles

Weight: grams: 270-400 grams

Snowflake Obsidian 8x10-9x13mm Side Drilled Pebble - 15-16 Inch Stringing-Materials-Chain ” Tourmaline began to beSnowflake Obsidian is a volcanic black stone with small, white, radially clustered inclusions of cristobalite in the black glass, producing snowflake patterns. Obsidian is formed when felsic lava cools without crystal growth. It is sometimes used for scalpel blades in cardiac surgery, as Obsidian can be formed into a blade many times sharper than steel surgical blades.