Ferritungstite
A variety of Hydrokenoelsmoreite
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About Ferritungstite
Lustre:
Vitreous
Crystal System:
Isometric
Name:
In allusion to the composition, containing FERRIc iron (Fe3+), and TUNGSTen.
First Recorded Locality:
A variety of Hydrokenoelsmoreite
Previously considered to be an independent species, with the formula (K,Ca,Na)(W6+,Fe3+)2(O,OH)6.H2O (partial replacement of W6+ by Fe3+ charge-balanced by introduction of K+, Ca2+ and Na+ in voids of the structure), but later recognised to be only a ferric iron-rich variety of hydrokenoelsmoreite.
Previously considered to be an independent species, with the formula (K,Ca,Na)(W6+,Fe3+)2(O,OH)6.H2O (partial replacement of W6+ by Fe3+ charge-balanced by introduction of K+, Ca2+ and Na+ in voids of the structure), but later recognised to be only a ferric iron-rich variety of hydrokenoelsmoreite.
Unique Identifiers
Mindat ID:
1504 (as Ferritungstite)
27428 (as Hydrokenoelsmoreite)
27428 (as Hydrokenoelsmoreite)
Long-form identifier:
mindat:1:1:1504:8 (as Ferritungstite)
mindat:1:1:27428:5 (as Hydrokenoelsmoreite)
mindat:1:1:27428:5 (as Hydrokenoelsmoreite)
GUID
(UUID V4):
(UUID V4):
66cab3ec-1bdb-4568-8a04-a41f9a34c8ac (as Ferritungstite)
46ac720e-8531-4625-a6bf-8d808a6b8200 (as Hydrokenoelsmoreite)
46ac720e-8531-4625-a6bf-8d808a6b8200 (as Hydrokenoelsmoreite)
IMA Classification of Ferritungstite
Discredited
Classification of Ferritungstite
27.4.16
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
Physical Properties of Ferritungstite
Vitreous
Transparency:
Translucent
Optical Data of Ferritungstite
Type:
Isotropic
RI values:
n = 2.09 - 2.15
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Very High
Comments:
Anomalously anisotropic.
Crystallography of Ferritungstite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 10.352 Å
Unit Cell V:
1,109.36 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Crystals minute octahedra; as rosettes, in aggregates; earthy crusts; fibrous.
Twinning:
Penetration twins and platy, six-sided, cyclic twins, according to the spinel law.
First Recorded Occurrence of Ferritungstite
Synonyms of Ferritungstite
Other Language Names for Ferritungstite
Common Associates
Associated Minerals Based on Photo Data:
5 photos of Ferritungstite associated with Wolframite Group | |
4 photos of Ferritungstite associated with Quartz | SiO2 |
3 photos of Ferritungstite associated with Anthoinite | AlWO3(OH)3 |
2 photos of Ferritungstite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
1 photo of Ferritungstite associated with Ferberite | FeWO4 |
1 photo of Ferritungstite associated with Goethite | α-Fe3+O(OH) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Ferritungstite
mindat.org URL:
https://www.mindat.org/min-1504.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Ferritungstite
Localities for Ferritungstite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Argentina | |
| Fernández (1999) |
| Kittl (1939) +1 other reference |
Australia | |
| Rankin et al. (2002) |
| Bottrill et al. (2008) |
| Ryan Eagle field observation |
| Simpson (1928) |
| Simpson et al. (1948) +1 other reference |
Canada | |
| Peatfield (n.d.) |
T. S. Ercit and G. W. Robinson (1994) +2 other references | |
Czech Republic | |
| Losertová et al. (2014) |
France | |
| Ansermet et al. (2010) |
| Patrice Queneau collection (analyzed) |
| Bariand et al. (1977) +1 other reference |
Germany | |
| Weiß (2001) |
| Andreas Gerstenberg collection |
Italy | |
| Piccoli et al. (2007) |
| Orlandi et al. (2005) +1 other reference |
| Vanini et al. (2008) |
| Stara et al. (1996) |
Brizzi G. et al. (1989) | |
| Brizzi et al. (1994) |
Stara et al. (1996) | |
Stara et al. (1996) | |
Japan | |
| ... +1 other reference |
| Shirose et al. (2011) +1 other reference |
| Tsunoda & Shimizu (1995) |
Kazakhstan | |
| Jeremolenko (2002) |
| Evseev (1995) |
Portugal | |
| Pedro Alves collection |
| Gomes et al. (2010) |
| Sahama (1981) +1 other reference |
Russia | |
| Stuart Mills |
Rwanda | |
| Jedwab et al. (1979) +1 other reference |
| Bernard et al. (2004) +2 other references |
Spain | |
| Bocamina (Grupo Mineralogista de Madrid) |
Thailand | |
| Dill et al. (2008) |
Uganda | |
| - (1977, November) |
Elmar Lackner specimen | |
| J. W. Anthony et al.: "Handbook of Mineralogy" (1997) |
O. von Knorring et al. (1972) +1 other reference | |
UK | |
| Golley et al. (1995) |
| Steve Rust and Richard de Nul specimens. |
USA | |
| Eckel et al. (1997) |
| Reported by Dick Schooner (not analyzed?) |
| Graf (1947) +1 other reference |
| Castor et al. (2004) |
| Castor et al. (2004) |
| NBMG Bull 58 Geology and Mineral ... |
| Bernard et al. (2004) |
| Bernard et al. (2004) |
Hingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK