Le Groupe de Scheelite

Property

Value

 formula

 CaWO4

 WO3 content (%)

 80.6

 specific gravity

 5.4 - 6.1 gr/cc

 form

 massive and small grains, tetragonal crystals

 color

 pale yellow, brown, or white

 luster

 vitreous/resinous

 diaphaneity

 transparent/translucent

 streak

 white

 crystal structure

 tetragonal

 cleavage

 good in 4 directions

 fracture

 uneven

 hardness

 4.5 - 5 Mohs

 magnetism

 none