Iceland spar
From the collection · View photograph

Stones underfoot / Collection

Iceland spar

Brazil

Chemical formulaCaCO₃

Mohs hardness
3
Dimensions
41×22 mm

Properties

Specimen properties and description

Colour
White
Density
2,711 g/cm³
Lustre
Vitreous
Transparency
Transparent
Cleavage
Perfect
Crystal system
Trigonal

Crystal structure

Trigonal crystal system

Crystal symmetry diagram.

Trigonal crystal system
Iceland spar