Unnamed (Fe Pyrosulphite)
A material that is NOT an approved mineral species
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Formula:
~Fe(S4+,As)2O5
Another example of intermediate-valence S-compound of a carbonate-hostet banded Zn-Pb sulphide deposit (Orzeł Biały mine, Upper Silesia, Poland). It has some Pb in composition. The above compounds include subsulphites (Unnamed (Fe Subsulphite)), sulphites (Unnamed (Fe Sulphite), Unnamed (Zn Sulphite)), pyrosulphites and thiosulphates ('UM1995-34-SO:Fe', Unnamed (Fe Thiosulphate II), Unnamed (Pb Thiosulphate)). There is also a Fe-Pb phase ('UM1995-35-SO:FePb'). These compounds are generally banded/radial/fibrous/spherulitic in form and have lowered reflectivity with growing sulphur valence. They are precursors for banded ore sulfides. Compare also Unnamed (Fe Oxysulphide).
The pyrosulphite occurs as banded matrix interdigitated with galena and pyrite. Oxygen excess in the compound is balanced by the presence of silica admixture.
The composition is unique and this is likely the only example of a pyrosulphite mineral currently known.
Compare also albertiniite (a sulphite).
The pyrosulphite occurs as banded matrix interdigitated with galena and pyrite. Oxygen excess in the compound is balanced by the presence of silica admixture.
The composition is unique and this is likely the only example of a pyrosulphite mineral currently known.
Compare also albertiniite (a sulphite).
Unique Identifiers
Mindat ID:
47498
Long-form identifier:
mindat:1:1:47498:2
GUID
(UUID V4):
(UUID V4):
85a323f5-9c4c-41d9-8739-b7e7b89d8841
Chemical Properties of Unnamed (Fe Pyrosulphite)
Formula:
~Fe(S4+,As)2O5
Elements listed:
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.
References for Unnamed (Fe Pyrosulphite)
Reference List:
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Kucha, H., Viaene, W. (1992): Compounds with mixed and intermediate sulfur valences as precursors of banded sulfides in carbonate-hosted Zn-Pb deposits in Belgium and Poland. Mineralium Deposita: 28(1): 13-21
Internet Links for Unnamed (Fe Pyrosulphite)
mindat.org URL:
https://www.mindat.org/min-47498.html
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Localities for Unnamed (Fe Pyrosulphite)
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.
Poland | |
| Kucha, H., Viaene, W. (1992): Compounds with mixed and intermediate sulfur valences as precursors of banded sulfides in carbonate-hosted Zn-Pb deposits in Belgium and Poland. Mineralium Deposita: 28(1): 13-21 |