Agate
From the collection · View photograph

Stones underfoot / Collection

Agate

Russia

Chemical formulaSiO₂

Mohs hardness
6,5–7
Dimensions
30×26 mm

Properties

Specimen properties and description

Colour
Grey with black stripes
Density
2,6 g/cm³
Lustre
Dull
Transparency
Opaque
Cleavage
None
Crystal system
Trigonal

Crystal structure

Trigonal crystal system

Crystal symmetry diagram.

Trigonal crystal system
Agate