Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
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Ba₄Ti₂Na(NaCa)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)]
Formula
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Mineral Species
Entry type
—
Silicates
Chemical class
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Triclinic
Crystal system
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4.75
Mohs hardness
—
3.96
Specific gravity
—
—
Streak
—
Vitreous on cleavages, slightly resinous on fractures
Luster
—
Perfect on {010}, {110}, {110}, good on {001}
Cleavage
—
P-1
Space group
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Seidozerite-Lamprophyllite
Structural group
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Inn · Approved
IMA
—
1961
Named in
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Pale yellow to brown
Typical colors
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Ba · Ti · Na · Ca · Si · O · S · P · H
Elements
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