VS
Name
—
Zn₂(Mn⁴⁺,Mn³⁺)₅O₁₀·4H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
4.5
Mohs hardness
—
3.71–4.01
Specific gravity
—
Brown
Streak
—
Dull
Luster
—
—
Cleavage
—
—
Space group
—
—
Structural group
—
Wdr · Grandfathered
IMA
—
1953
Named in
—
Iron-black to chocolate-brown; light gray to yellowish gray in reflected light
Typical colors
—
Zn · Mn · O · H
Elements
—