Wolframite and Beryl (Weight: 1675 g) – Place of discovery: Adun-Cholon Range, Transbaikalia (Zabaykalsky Krai), Far Eastern, Russia — Photo: Kaethe17 · CC BY-SA 4.0
Wolframite
Also known as: Tungsten ore.
The iron-manganese tungstate — intermediate between ferberite and hübnerite — the chief ore of tungsten.
Intro adapted from Wikipedia (CC BY-SA).
Wolframite is a mineral group, with the chemical formula (Fe,Mn)WO₄.
It crystallizes in the monoclinic crystal system.
Key properties: Mohs hardness 4–4.5; typically black or brown.
Collections: Metals & Native Elements, Collector Favorites.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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