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Blue Lace Agate is a naturally occurring soft blue agate
Labradorite is usually gray to green
tourmaline and other minerals
It is found in rare pallasite meteorites believed to have been formed 4
Hematite is black to steel to gray or silver to gray
Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch 30x50mm Blue Lace Agate is aPrehnite 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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