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

VS
L
Name
—
(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
5–6
Mohs hardness
—
3.4–3.55
Specific gravity
—
Yellow
Streak
—
Vitreous to greasy
Luster
—
Good on {100}
Cleavage
—
P2_1/a
Space group
—
Wöhlerite
Structural group
—
Låv · Grandfathered
IMA
—
1884
Named in
—
Colorless, light to dark yellow, beige, yellow-orange, red-brown to brown-black; in thin section
Typical colors
—
Na · Ca · Mn · Fe · Zr · Ti · Nb · Si · O · F
Elements
—