Wolframite
A synonym of Wolframite Group
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Formula:
(Fe2+)WO4 to (Mn2+)WO4
Lustre:
Sub-Metallic
Hardness:
4 - 4½
Crystal System:
Monoclinic
Name:
Per Agricola, it is derived from "volf," "wolf," and "rahm," "ram," for "froth", "cream," "soot" (Latin = Lupi spuma), perhaps in allusion to an objectionable scum or substance formed during the smelting of tin ores containing tungsten; possibly also derived from "lupus" and "wolf", which were alchemists' terms for antimony, for which it may have been mistaken as an ore.
Synonym:
A synonym of Wolframite Group
Material usually chemically between Hübnerite and Ferberite with unspecified chemical composition. Rarely, "wolframite" could also correspond to other members of the wolframite group.
Occurs in high-temperature hydrothermal veins, in greisen, granitic pegmatites; in alluvial and eluvial deposits.
"Wolframite" of the Badzhalski ore deposit is extremely enriched in rhenium: up to 3.52 wt.% Re2>O7 (Alekseev & Marin, 2018).
Occurs in high-temperature hydrothermal veins, in greisen, granitic pegmatites; in alluvial and eluvial deposits.
"Wolframite" of the Badzhalski ore deposit is extremely enriched in rhenium: up to 3.52 wt.% Re2>O7 (Alekseev & Marin, 2018).
Unique Identifiers
Mindat ID:
4305 (as Wolframite)
39780 (as Wolframite Group)
39780 (as Wolframite Group)
Long-form identifier:
mindat:1:1:4305:8 (as Wolframite)
mindat:1:1:39780:5 (as Wolframite Group)
mindat:1:1:39780:5 (as Wolframite Group)
GUID
(UUID V4):
(UUID V4):
4bae1dc6-2b8f-426f-af73-7cad09d3ed1a (as Wolframite)
66913452-ca1c-4aaa-9d46-91a31a1babac (as Wolframite Group)
66913452-ca1c-4aaa-9d46-91a31a1babac (as Wolframite Group)
Internet Links for Wolframite
mindat.org URL:
https://www.mindat.org/min-4305.html
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References for Wolframite
Reference List:
Cronstedt, Axel Fredrik (1758) Försök till en Mineralogie eller Mineral Rikets Upställning. J. A. Carlbohm, Stockholm.
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 p.157
Goldschmidt, V. (1923) Atlas der Krystallformen. 9 volumes, atlas, and text. Heidelberg. vol. 9: 86.