VS
Name
—
Fe²⁺Ge(OH)₆
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Tetragonal
Crystal system
—
4.5
Mohs hardness
—
3.596
Specific gravity
—
Grayish white
Streak
—
Resinous to adamantine, greasy on cleavages
Luster
—
{100}, {010}, good; {001}, poor
Cleavage
—
P4_2/n
Space group
—
Perovskite
Structural group
—
Sto · Grandfathered
IMA
—
1958
Named in
—
Brown, green, orange, red; in transmitted light, orange-brown
Typical colors
—
Fe · Ge · O · H
Elements
—