- Wolframite - (Fe,Mn)WO , short prismatic crystals or massive habit , brown-black to black color , red-brown streak , one perfect cleavage , H = 4 to 4.5 , density = 7.1 to 7.5
- Scheelite - CaWO , massive to granular habit , colorless to white or yellow or brown , white streak , fluoresces bright blue in short ultraviolet radiation , H = 4.5 to 5 , density = 6.1
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