Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
—
(Ce,Ca)₄(Fe³⁺,Ti,Fe²⁺, )(Ti,Fe³⁺,Fe²⁺,Nb)₄Si₄O₂₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
72.2–89.2
Mohs hardness
—
4.62
Specific gravity
—
Black
Streak
—
Submetallic
Luster
—
None
Cleavage
—
C2/m
Space group
—
Chevkinite
Structural group
—
Mao-Ce · Approved
IMA
—
2003
Named in
—
Black; in reflected light, grayish white, with no internal reflections
Typical colors
—
Ce · Ca · Fe · Ti · Nb · Si · O
Elements
—