General Information:
Chemical Formula:YW2O6(OH)3
Composition:(Molecular Weight = 603.62 gm)Yttrium 14.73 %
Y Hydrogen 0.50 %
H Tungsten 60.92 %
W Oxygen 23.86 %
O Empirical Formula: YW2O6(OH)3
IMA Status:Approved IMA 1987
Locality:Kramat Pulai mine, Kinta District, Perak, Malaysia.
Name Origin:Named for the composition (Yttrium, Tungsten).
Physical Properties: Cleavage:[???] Good
Color:canary yellow or light yellow.
Density:5.96
Habits:Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., Encrustations - Forms crust-like aggregates on matrix., Lath - Shaped like a small, thin plas ter lath, tabular (rectangular) in shape
Hardness:1 - Talc
Luster:Earthy (Dull)
Streak:yellow white
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