|
Chemical formula
|
SiO2 _ |
|
Crystalline system
|
trigonal |
|
Class
|
oxides |
| Origin | Minas Gerais, Brazil |
| Size |
Medium: 3.00-4.00 cm Large: 4.00-5.00 cm |
Amethyst in druse with violet color.
Amethyst is a violet macrocrystalline variety of quartz. The color can be more or less intense, depending on the amount of iron it contains. It can appear colored by zones with transparent or yellow quartz (citrine).
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.