|
Chemical formula
|
CaCO₃ |
|
Crystalline system
|
rhombohedral |
|
Class
|
carbonates |
| Origin | Madrid Spain |
| Size |
Medium: 3.0-4.0cm Extra: 6.0-7.0cm |
White Calcite geode.
Calcite is a mineral composed almost entirely of calcium carbonate, when it has various impurities it appears with different colors.
The main uses of this mineral due to its chemical composition are to create cement, to create lime, to make glass, in agriculture and for the construction of buildings.
The piece you receive may differ slightly from the photo shown as the minerals are natural and no piece is identical. The size is approximate.