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VS
Caysichite-(Y)
Name
—
(Ca,Yb,Er)₄Y₄(Si₈O₂₀)(CO₃)₆(OH)·7H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
4.5
Mohs hardness
—
3.03
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
{010} (?)
Cleavage
—
Ccm2_1
Space group
—
—
Structural group
—
Cay-Y · Approved
IMA
—
1973
Named in
—
Colorless, white to pale yellow; rarely greenish
Typical colors
—
Ca · Yb · Er · Y · Si · O · C · H
Elements
—