Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
—
(Na, )₂Ca(Ti,Mg,Nb)₄[Si₂O₇]₂O₂(OH,O)₂(H₂O)₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
2.5–3
Mohs hardness
—
2.7
Specific gravity
—
White
Streak
—
Pearly on cleavage; greasy on fracture surfaces
Luster
—
Perfect on {001}, distinct on two other directions nearly ⊥ to one another and (001)
Cleavage
—
P-1
Space group
—
Seidozerite-Murmanite
Structural group
—
Cmmn · Approved
IMA
—
2015
Named in
—
Pale brown, purple; colorless in transmitted light
Typical colors
—
Na · Ca · Ti · Mg · Nb · Si · O · H
Elements
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