|
Chemical formula
|
SiO2 _ |
|
Crystalline system
|
trigonal, hexagonal |
|
Class
|
oxides |
| Origin | Minas Gerais, Brazil |
| Size |
Medium : 3.0-4.0 cm big : 4.0-5.0cm |
Massive bluish colored Quartz with darker colored veins typical of the mineral.
The bluish pigment of quartz is created by mixing quartz with other minerals such as durmoteria and zulite, which form these impurities that give it these tones.
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.