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This delicate specimen features a sparkling layer of fine
high- silica purity and a brilliant
This item is 3" x 2" and weighs 11 oz
72" and weighs 101 grams
Bornite ”Peacock Ore” black tourmaline This delicate specimen features aBornite is a copper iron sulfide mineral also known as peacock ore for its striking iridescent tarnish (blues, purples, reds) that develops on its fresh bronze brown surface as it oxidizes, making it an important copper ore, found in hydrothermal deposits, valued for copper extraction, and identified by its unique color change and metallic luster. This item is 2. 5 x 1. 5 and weighs 4. 95 oz.
US$ 12.93
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US$ 189.00
