Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch *CHKRA-ORG Sardonyx has a Sard base

Sardonyx has a Sard base

Our Jade is one of two mineral varieties -- nephrite

depositing layer upon layer of Quartz silicate to create the banding and patterns now prized in Botswana Agate

and this phenomenon is thought to be due to impurities of yttrium or organic matter within the crystal lattice

gray and purple

Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch *CHKRA-ORG Sardonyx has a Sard basePrehnite 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.