Chrysocolla 8-10mm Irregular Cube A Grade - 15-16 Inch Color_Green Prehnite is translucent to transparent

Prehnite is translucent to transparent

so named because the ancient Incas believed the stone to be the petrified blood of their ancestral rulers

It's often found in large masses and can be colorless

This variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns

When the level of iron oxide is high

Chrysocolla 8-10mm Irregular Cube A Grade - 15-16 Inch Color_Green Prehnite is translucent to transparentChrysocolla, 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.