VS
Name
—
Al₅Sb⁵⁺₃O₁₄(OH)₂
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
9
Mohs hardness
—
4.78–5.29
Specific gravity
—
—
Streak
—
Adamantine
Luster
—
{100}, perfect
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Bhi · Approved
IMA
—
1974
Named in
—
Tan, cream, orange-brown, brown; crystals colorless, tan, pale violet
Typical colors
—
Al · Sb · O · H
Elements
—