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or a sandy beach blending into a tropical bay
They are all varieties of the mineral corundum
It also occurs in golden yellows and browns as well as milky white
The most highly regarded colors are the reds and pinks
Prehnite with Rutilate 6mm Round - 15-16 Inch memorial2026-mf or a sandy beach blendingPrehnite 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.
