|
Chemical formula
|
SiO2 • nH2O _ _ |
|
Crystalline system
|
Amorphous |
|
Class
|
silicates |
| Origin | Albacete, Spain |
| Size |
Medium: 2.0-2.5cm Large: 3.0-4.0cm |
The Menilite Opal is a curious variety of Opal that is formed by a nucleus covered by diatomite.
Diatomite is a sedimentary rock formed by the accumulation of microfossils of algae from the Miocene period.
The piece you receive may differ slightly from the photo shown, as the minerals they are natural and there is no identical piece. The size is approximate.