VS
Name
—
Fe²⁺₈Si₆O₁₅(OH)₁₀
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
3.14
Specific gravity
—
—
Streak
—
—
Luster
—
{0001}, good
Cleavage
—
P-3m1
Space group
—
Pyrosmalite, Clay
Structural group
—
Pys-Fe · Approved
IMA
—
1808
Named in
—
In transmitted light, colorless
Typical colors
—
Fe · Si · O · H
Elements
—