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VS
Mottanaite-(Ce)
Mottanaite-(Ce)
Name
—
Ca₄Ce₂Al(Be₁.₅   ₀.₅)Σ₂[B₄Si₄O₂₂]O₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
3.61
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
None
Cleavage
—
P2/a
Space group
—
Hellandite
Structural group
—
Mot-Ce · Approved
IMA
—
2001
Named in
—
Brown
Typical colors
—
Ca · Ce · Al · Be · B · Si · O
Elements
—