Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
—
Pb(Mn²⁺, )(Fe³⁺, )₂(V⁵⁺,Ti⁴⁺, )₁₈O₃₈
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Hexagonal
Crystal system
—
6–6.5
Mohs hardness
—
4.315
Specific gravity
—
Black
Streak
—
Submetallic
Luster
—
None
Cleavage
—
R-3
Space group
—
Crichtonite
Structural group
—
Psr · Approved
IMA
—
2011
Named in
—
Dark gray to black; grayish in reflected light
Typical colors
—
Pb · Mn · Fe · V · Ti · O
Elements
—