VS
Name
—
Ca₂Y₂(SiO₃)₄(CO₃)·H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
5–6
Mohs hardness
—
3.52
Specific gravity
—
—
Streak
—
Vitreous to resinous
Luster
—
Good on {110}
Cleavage
—
Pmnb
Space group
—
—
Structural group
—
Kno-Y · Approved
IMA
—
1886
Named in
—
Colorless, white, straw-yellow, yellow-brown, chestnut-brown, may be tipped with rose or pink
Typical colors
—
Ca · Y · Si · O · C · H
Elements
—