VS
Name
—
CaFe³⁺₄(PO₄)₂(OH)₈·4-5H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Amorphous
Crystal system
—
3.5
Mohs hardness
—
2.38–2.53
Specific gravity
—
Pale brown
Streak
—
Waxy to opaline
Luster
—
—
Cleavage
—
—
Space group
—
Amorphous
Structural group
—
Dvx · Questionable
IMA
—
1838
Named in
—
Yellowish brown, brownish black, dark to medium reddish brown, reddish
Typical colors
—
Ca · Fe · P · O · H
Elements
—