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Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

VS
Deerite
Name
—
Fe²⁺₆Fe³⁺₃(Si₆O₁₇)O₃(OH)₅
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
3.837
Specific gravity
—
—
Streak
—
—
Luster
—
Good on {110}
Cleavage
—
P2_1/a
Space group
—
—
Structural group
—
Dee · Approved
IMA
—
1964
Named in
—
Black
Typical colors
—
Fe · Si · O · H
Elements
—