Rock Crystal Point - Brazil - Crystal Minerals 4.6 cm / 9g / AX875

ROCK CRYSTAL belongs to the silicate group. It mainly contains silicon and oxygen. Its chemical formula is SiO2.
ROCK CRYSTAL occurs in cryptocrystalline form or with colorless prismatic crystals. Its hardness is 7/10 on the Mohs scale and its density is 2.7 (1 for water). The line on the porcelain is white.
The ghosts present in ROCK CRYSTALS are due to the formation of crystallization in successive stages.

Unique piece - Contractual photos

Origin: crystal minerals from Brazil

Dimensions: 4.6 x 3.4 x 1.8 cm

Weight: 9 g