VS
Name
—
Ca₃YAl₂(SO₄)F₁₃·12H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Cubic
Crystal system
—
3
Mohs hardness
—
2.27–2.4
Specific gravity
—
—
Streak
—
Vitreous to pearly, greasy on fracture surfaces
Luster
—
On {111}, distinct
Cleavage
—
Fd3
Space group
—
Chukhrovite
Structural group
—
Chk-Y · Approved
IMA
—
1960
Named in
—
Colorless, white, rarely with a lilac tint
Typical colors
—
Ca · Y · Al · S · O · F · H
Elements
—