VS
Name
—
Ca₂Fe³⁺₃O₂(AsO₄)₃·3H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Monoclinic
Crystal system
—
4.5
Mohs hardness
—
3.58–3.6
Specific gravity
—
Ocher-yellow
Streak
—
Submetallic to silky
Luster
—
On {001}, perfect
Cleavage
—
A2/a
Space group
—
Arseniosiderite
Structural group
—
Assd · Grandfathered
IMA
—
1842
Named in
—
Golden yellow, yellowish brown, reddish brown, brownish black, black
Typical colors
—
Ca · Fe · O · As · H
Elements
—