VS
Name
—
Ca₄Fe³⁺₂(PO₄)₄(OH)₂·3H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
—
Crystal system
—
2.5
Mohs hardness
—
2.97
Specific gravity
—
—
Streak
—
Dull to slightly waxy
Luster
—
{010}, perfect
Cleavage
—
—
Space group
—
—
Structural group
—
Xox · Approved
IMA
—
1920
Named in
—
Pale yellow, brownish yellow; pale yellow to pale lemon-yellow in transmitted light
Typical colors
—
Ca · Fe · P · O · H
Elements
—