VS
Name
—
(Ca,REE)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
5.254
Specific gravity
—
Light brown to yellow
Streak
—
Adamantine
Luster
—
None
Cleavage
—
Cmca
Space group
—
Zirconolite
Structural group
—
Swi · Approved
IMA
—
2018
Named in
—
Brown, reddish brown to very dark brownish red, with red-brown internal reflections
Typical colors
—
Ca · REE · Zr · Nb · Ti · Fe · O
Elements
—