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This mineral is clearly anthropogenic, but was accepted before the current IMA CNMMN rules excluding such species came into effect.
This page provides mineralogical data about Romarchite.
Classification of Romarchite
|Strunz 8th edition ID:||4/A.08-10|
|Nickel-Strunz 10th (pending) edition ID:||4.AC.20|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
C : M:O = 1:1 (and up to 1:1.25); with large cations (+- smaller ones)
|Dana 8th edition ID:||126.96.36.199|
4 : SIMPLE OXIDES
2 : AX
|Hey's CIM Ref.:||7.11.1|
7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
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Type Occurrence of Romarchite
|Type Locality:||Boundary Falls, Winnipeg River, Kenora District, Ontario, Canada|
|Year of Discovery:||1971|
Crystallography of Romarchite
|Cell Parameters:||a = 3.8Å, c = 4.83Å|
|Ratio:||a:c = 1 : 1.271|
|Unit Cell Volume:||V 69.75 Å³ (Calculated from Unit Cell)|
Chemical Properties of Romarchite
|Essential elements:||O, Sn|
|All elements listed in formula:||O, Sn|
Relationship of Romarchite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Romarchite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Romarchite
Canadian Mineralogist (1971): 10: 916.
The Canadian Mineralogist Vol. 41, pp. 649-657 (2003)
American Mineralogist (1972): 57: 1555.
Acta Crystallographica: B36: 2763-2765.
Internet Links for Romarchite
Localities for Romarchite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: A 6 road cut, Elvas, Portalegre District, PortugalFrom Rui Nunes, 11th Dec 2013 21:48:46