VS
Name
—
Ca₄Be₃Si₆O₁₇(OH)₄·3H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
4.5
Mohs hardness
—
2.541
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
Perfect on {010}
Cleavage
—
—
Space group
—
—
Structural group
—
Tve · Approved
IMA
—
1990
Named in
—
Cream-white to pale beige, zoned
Typical colors
—
Ca · Be · Si · O · H
Elements
—