Prehnite with Rutilate 6mm Round - 15-16 Inch hps_01292026 but the difference in the

but the difference in the pattern really stands out and shows it's individual beauty

the third to hardest common natural gemstone

Petrification occurs when the wood is covered by sedimentary rock

Peruvian Turquoise is an important ornamental mineral for jewelry and adorned the ceremonial dress of early native Inkas

White African Opal is a white to cream to light tan stone with veining of black or gray

Prehnite with Rutilate 6mm Round - 15-16 Inch hps_01292026 but the difference in thePrehnite 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.