VS
Name
—
(Ca,Na, )₂Mn³⁺₃O₂(AsO₄)₂(CO₃)·3H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
3.356
Specific gravity
—
Brown
Streak
—
Vitreous
Luster
—
Perfect {001}
Cleavage
—
Cm
Space group
—
Arseniosiderite
Structural group
—
Slf · Approved
IMA
—
2000
Named in
—
Dark red-brown to black
Typical colors
—
Ca · Na · Mn · O · As · C · H
Elements
—