Robin on Black Tourmaline Carving

Robin on Black Tourmaline Carving
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Also known as “Nature’s Glass”, Obsidian is formed when volcanic lava quickly cools with minimal crystallization, creating volcanic glass. Obsidian is hard and brittle, and has been used for arrowheads and cutting tools throughout history.
The most common form of Tourmaline, Schorl is never transparent or translucent and is exclusively black. Highly lustrous, Black Tourmaline is one of the most aesthetically pleasing black minerals known. It gets its color from the presence of Iron. When if forms as tiny needles within a Quartz crystal, the crystal becomes Tourmalinated Quartz.
5 x 4 x 4 inches
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