|
Chemical formula
|
SiO2 _ |
|
Crystalline system
|
trigonal, hexagonal |
|
Class
|
oxides |
| Origin | Minas Gerais, Brazil |
| Size | 2.0-3.0cm |
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 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.