Wolframite / Hubnerite (manganese iron tungstate) on Jacare Quartz matrix (Brazil)
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Photo credit: © PjrRocks / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: black, crystal, crystals, geology, hubnerite, huebnerite, iron, jacare, manganese, mineral, minerals, quartz, rock, sample, small, tungstate, tungsten, white, wolframite