Giant Dioptase from Congo XL
Giant Dioptase from Congo, Africa.
Ultra RARE and authentic gemstone dioptase.
Piece certified 100% natural . A very rare piece that can only be found in a few large collections around the world or in museums !!
Very beautiful emerald green color well supported!
- Size: N / C
- Chemical formula: Cu6Si6O18 • 6H2O
- Crystal system: trigonal
- Mohs scale: 5
Dioptase is a mineral that belongs to the family of silicates ( hydrated copper silicate ). It is formed by crystals in the form of prisms which are transparent or else translucent . Emerald green in color up to dark blue green, its size varies depending on whether it comes from Tsumeb in Namibia or from the Democratic Republic of Congo , Africa .