Prehnite 8mm Round AAA Grade - 15-16 Inch R1757 micro-crimps and for adding an

micro-crimps and for adding an extra squeeze to your crimps

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Kyanite is also extremely useful in industrial applications due to its high heat resistance

one of the most recognized turquoise-producing regions in the world

originally from the Lapis-Lazuli mine in Afghanistan

Prehnite 8mm Round AAA Grade - 15-16 Inch R1757 micro-crimps and for adding anPrehnite 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.