|
Chemical formula
|
CaCO 3 |
|
Crystalline system
|
rhombohedral |
|
Class
|
carbonates |
| Origin | Antsirabe, Madagascar |
| Size | 2.0-3.0cm |
Massive Calcite of intense blue color.
Calcite appears in a multitude of colors and its coloration depends on various impurities.
Calcite is very common and has a wide distribution throughout the planet, it is estimated that approximately 4% by weight of the earth's crust it is calcite.
The mineral includes a label with the name and origin and is attached to a cardboard box. 4 cm square.
*The price is per unit (a single cardboard box of the four shown in the photo)
Since the minerals are natural, you will receive a piece similar to the one in the photograph. The minerals come in cardboard boxes and are glued to a porex base with hot silicone; these can be removed using ethyl alcohol without damaging the mineral. The size is approximate.