VS
Name
—
WO₃·H₂O
Formula
—
Mineral Species
Entry type
—
Tungstates
Chemical class
—
Orthorhombic
Crystal system
—
2.5
Mohs hardness
—
5.517
Specific gravity
—
—
Streak
—
Resinous, pearly on cleavages
Luster
—
{001}, perfect; {110}, imperfect
Cleavage
—
Pmnb
Space group
—
—
Structural group
—
Tgs · Grandfathered
IMA
—
1868
Named in
—
Bright yellow, golden yellow, dark yellow-orange, yellowish green; yellow in transmitted light
Typical colors
—
W · O · H
Elements
—