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5” and weighs 3
While gem-quality ruby represents the transparent form of this mineral
In both ancient and modern times it is often associated with strength and courage
Formed over millions of years as ancient coral gradually transformed into agate
55 oz and is 3
Biotite on Anthophyllite | Czech Republic minerals 5” and weighs 3Biotite on anthophyllite refers to a common geological occurrence where dark mica (biotite) crystals grow within or around fibrous anthophyllite, an amphibole mineral, often forming attractive specimens with distinct textures like bladed crystals or nodular "balls," indicating specific metamorphic conditions (low HCl fluids). This item is 2. 5 x 1. 5 and weighs 4. 55 oz
US$ 13.37
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US$ 11.79
US$ 10.28
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