Prehnite 7x10mm Faceted Tube - 15-16 Inch Pearl Its chatoyant layers that create

Its chatoyant layers that create a flash which seems to emanate from within the stone as they catch the light

also known as the Stone Age

oil and succinic acid

in colors from light green to yellow green to olive

Sieber agate is not a true agate but rather a glassy

Prehnite 7x10mm Faceted Tube - 15-16 Inch Pearl Its chatoyant layers that createPrehnite 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.