VS
Name
—
SiO₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
7
Mohs hardness
—
2.65–2.66
Specific gravity
—
White
Streak
—
Vitreous; waxy to dull when massive
Luster
—
Rarely observable, poor on {1011}, {0111}, {1010}, some others; rhombohedral parting
Cleavage
—
P6_222
Space group
—
Quartz
Structural group
—
Qz · Approved
IMA
—
0
Named in
—
Colorless, White, Purple, Yellow, Pink, Brown, Gray, Black
Typical colors
—
Si · O
Elements
—