VS
Name
—
Ca₂Mn²⁺(PO₄)₂·2H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Triclinic
Crystal system
—
3.5
Mohs hardness
—
3.08–3.11
Specific gravity
—
White
Streak
—
Pearly to subadamantine, vitreous on the {001} cleavage
Luster
—
{001}, perfect; {010}, good; {110}, distinct
Cleavage
—
P-1
Space group
—
Fairfieldite
Structural group
—
Ffd · Grandfathered
IMA
—
1879
Named in
—
White, greenish white, pale straw-yellow, salmon-yellow; colorless in transmitted light
Typical colors
—
Ca · Mn · P · O · H
Elements
—