VS
Name
—
Ca(CO₃)
Formula
—
Mineral Species
Entry type
—
Carbonates
Chemical class
—
Orthorhombic
Crystal system
—
3.5–4
Mohs hardness
—
2.95
Specific gravity
—
White
Streak
—
Vitreous, resinous on fracture surfaces
Luster
—
{010}, distinct; {110} and {011}, imperfect
Cleavage
—
Pmcn
Space group
—
Aragonite
Structural group
—
Arg · Grandfathered
IMA
—
1788
Named in
—
Colorless, White, Yellow, Brown, Blue, Green, Pink
Typical colors
—
Ca · C · O
Elements
—