What is so special about these iron meteorites is their unique Widmanstätten patterns
Hackmanite is very reactive under UV light
It forms over long periods as mineral-rich water moves through aluminous rock
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It displays a visual property called “pleochroism
Spiderweb Obsidian 24-32x35-45mm AAAA Grade Free Form Cabochon Gem House USA What is so special aboutEssentially a volcanic glass, Obsidian ranges in color from opaque black, to green, brown, mahogany, black with rainbow colors, black with snowflake patterns, black with a golden sheen, and translucent black (Apache Tears) Sold individually. These cabochons are all unique and vary in colors and patterns. The image shown has 3 cabochons to give you an idea of the range possibilites of the colors, shapes, sizes, and patterns. The cabochon you received