Peruvian Chrysocolla 8mm Round A Grade - 15-16 Inch Blue Peru Opal It forms when Quartz and

It forms when Quartz and Feldspar crystallize in radial aggregates within other silica-rich stones

it lightens because of further weathering and becomes Malachite

black or brown veins running through it in web-like patterns

Rutilated Quartz is a silicon dioxide mineral with unique needle-like inclusions of Rutile

Peridot is one of few stones that occurs naturally in only one color

Peruvian Chrysocolla 8mm Round A Grade - 15-16 Inch Blue Peru Opal It forms when Quartz andChrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue to greens. It often also occurs with colors of rust, copper, black, white and reddish brown in speckles, veins and brecciated patterns. It is a very soft stone typically found near copper deposits. Chrysocolla was first described by Theosphrastus, a Greek philosopher and botanist who also named the stone, in 315 BCE.