Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
—
(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
2.5–3.5
Mohs hardness
—
3–3.4
Specific gravity
—
Green to gray
Streak
—
Pearly
Luster
—
{001}, perfect
Cleavage
—
C-1
Space group
—
Chlorite, Clay
Structural group
—
Chm · Grandfathered
IMA
—
1820
Named in
—
Green, Gray, Brown, Black
Typical colors
—
Fe · Mg · Al · Si · O · H
Elements
—