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Turquoise is formed when water passes through aluminous rock where copper and other minerals are present
These are sure to be a staple on your work bench
with mirrored or coordinating patterns that bring strong color
including Moonstone
a carbonate of chromium and magnesium
Prehnite 6x12-10x20mm Free Form Dancing Drops A Grade - 15-16 Inch Stone Type_Lapis Turquoise is formed when waterPrehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South Africa in 1774. Prehnite is translucent to transparent, in colors from light green to yellow green to olive, with occasional inclusions of Black Tourmaline that crisscross the stone in fibrous patterns. It is a phyllosilicate composed of silicon, calcium and aluminum with trace amounts of iron.
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