VS
Name
—
NaCa₂Mn²⁺₅Fe³⁺(AsO₄)₆·2H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Orthorhombic
Crystal system
—
5
Mohs hardness
—
3.8
Specific gravity
—
Yellow-brown to orange
Streak
—
Vitreous
Luster
—
On {010}, perfect
Cleavage
—
Pcab
Space group
—
Wicksite
Structural group
—
Gcn · Approved
IMA
—
1981
Named in
—
Dark red-brown
Typical colors
—
Na · Ca · Mn · Fe · As · O · H
Elements
—