Prehnite 10x14-13x17mm Faceted Tumble Nugget - 15-16 Inch Druse A Manganese inosilicate (or chain

A Manganese inosilicate (or chain silicate)

and many others

Represents the natural cycle of creation

the strand length

A quick one-handed flip brings the opposite tips to the same work area

Prehnite 10x14-13x17mm Faceted Tumble Nugget - 15-16 Inch Druse A Manganese inosilicate (or chainPrehnite 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.