VS
Name
—
K₅Na₅Y₁₂Si₂₈O₇₀(OH)₂(CO₃)₈·8H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Tetragonal
Crystal system
—
5
Mohs hardness
—
2.61
Specific gravity
—
White
Streak
—
Vitreous, may be silky
Luster
—
Perfect on {100}, distinct on {001}
Cleavage
—
I4/mmm
Space group
—
—
Structural group
—
Acf-Y · Approved
IMA
—
1933
Named in
—
Pale pink, white, pinkish brown, pinkish purple, deep violet-brown
Typical colors
—
K · Na · Y · Si · O · H · C
Elements
—