VS
Name
—
Ca(SO₃)·0.5H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Orthorhombic
Crystal system
—
3.5
Mohs hardness
—
2.52
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
Perfect on {110}
Cleavage
—
Pbna
Space group
—
—
Structural group
—
Hbc · Approved
IMA
—
1983
Named in
—
Colorless; changes to milky white on exposure to humid air
Typical colors
—
Ca · S · O · H
Elements
—