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Scheelite Specification

First Grade  WO3  = 60.0% minimum
Second Grade WO3  = 50.0% minimum

PHYSICAL PROPERTIES

Appearance:    Uniform particle size free of extraneous material

Particle Size:   <800 Microns or 1/32”

MAXIMUM IMPURITY CONTENT (%)

MnO

18

SiO2

5

P

0.1

S

1

As

0.1

Sn

0.6

Cu

0.1

Mo

0.06

CaO

2.5

Pb

0.2

Sb

0.2

Bi

0.2

H2O

2

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