raw wolframite ore stone isolated white background metallic minerals |
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| navigate by keyword : background black carbon coal collection crystal endmember ferberite fossil fuel geology granite gray intermediate iron isolated macro manganese material metallic mineral minerals natural nature object ore piece pyrite raw rock rocks rough series set solid solution stone stones texture that tungstate white wolframite |
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| iron manganese tungstate mineral that is the intermediate between ferberite and hübnerite. |
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