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VS
Keiviite-(Y)
Keiviite-(Y)
Name
—
Y₂Si₂O₇
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
4–5
Mohs hardness
—
4.45
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
—
Cleavage
—
C2/m
Space group
—
Thortveitite
Structural group
—
Kvi-Y · Approved
IMA
—
1984
Named in
—
Colorless to white
Typical colors
—
Y · Si · O
Elements
—