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the third to hardest common natural gemstone
” Tourmaline began to be highly prized after George Kunz
creativity and balance to those who wear it
The presence of Manganese within the stone produces the purple hue
golden tan
Prehnite 6mm Round AAA Grade - 15-16 Inch hps_01082026 the third to hardest commonPrehnite 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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