Prehnite 6mm Coin Faceted A Grade - 15-16 Inch Brecceated Jasper Mookaite is a variety of

Mookaite is a variety of Jasper in colors of red

5 Inches / 20x40mm / 2x3

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This variety of Amazonite is actually a combination of Amazonite

Prehnite 6mm Coin Faceted A Grade - 15-16 Inch Brecceated Jasper Mookaite is a variety ofPrehnite 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.