VS
Name
—
Fe²⁺(C₂O₄)·2H₂O
Formula
—
Mineral Species
Entry type
—
Organic Minerals
Chemical class
—
Monoclinic
Crystal system
—
1.5–2
Mohs hardness
—
2.28
Specific gravity
—
—
Streak
—
Dull to resinous
Luster
—
{110}, perfect; {100} and {010}, imperfect
Cleavage
—
C2/c
Space group
—
Humboldtine, Oxalate
Structural group
—
Hbd · Grandfathered
IMA
—
1821
Named in
—
Yellow to amber-yellow
Typical colors
—
Fe · C · O · H
Elements
—