VS
Name
—
Ca₄MgAl₄(PO₄)₆(OH)₄·12H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
4
Mohs hardness
—
2.53
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
{010}, perfect; {100}, poor
Cleavage
—
C2/c
Space group
—
Calcioferrite
Structural group
—
Mgm · Grandfathered
IMA
—
1940
Named in
—
Dark green to pale green, colorless, red, yellow, may be zoned
Typical colors
—
Ca · Mg · Al · P · O · H
Elements
—