Prehnite 3x4mm Rondelle Faceted A Grade - 15-16 Inch Red Aventurine Crystal Quartz is a naturally

Crystal Quartz is a naturally occurring clear and colorless Quartz

Yellow Jade is a magnesium iron phyllosilicate and may contain other elements including chromium

any color of the rainbow

Russia and Brazil

Fuchsite is the green Mica found in this quartz

Prehnite 3x4mm Rondelle Faceted A Grade - 15-16 Inch Red Aventurine Crystal Quartz is a naturallyPrehnite 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.