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deep-blue copper mineral produced by weathering of copper ore deposits
the other being Diamond
Dakota Stones is offering 2 looks in this recently discovered Peruvian Rhodochrosite deposit- A-Grade & Matrix
The stone's mossy greens
where it was mined since around 300 BCE
Blue Tourmaline 4mm Round Faceted - 15-16 Inch Microfaceted Rounds deep-blue copper mineral produced byBlue Tourmaline ranges in color from green to blue to yellow to green with black, milky white and clear, colorless inclusions. It is an aluminum borosilicate mixed with iron, magnesium and other metals that give it its color. Tourmaline occurs in nearly every color in the rainbow and its name derives from turmali, the Sinhalese word for mixed color precious stone. Tourmaline is unusual in that it is both pyroelectric and piezoelectric, meaning it
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