Romarchite
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Formula:
SnO
System:
Tetragonal
Name:
The name is from the acronym for the Royal Ontario Museum (section Archaeology), where the mineral was first studied.
This mineral is clearly anthropogenic, but was accepted before the current IMA CNMMN rules excluding such species came into effect.
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
Approved
4/A.08-10
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)
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)
4.2.5.1
4 : SIMPLE OXIDES
2 : AX
4 : SIMPLE OXIDES
2 : AX
7.11.1
7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
Chemical Properties of Romarchite
Formula:
SnO
Elements listed in formula:
Crystallography of Romarchite
Crystal System:
Tetragonal
Cell Parameters:
a = 3.8 Å, c = 4.83 Å
Ratio:
a:c = 1 : 1.271
Unit Cell Volume:
V 69.75 ų (Calculated from Unit Cell)
Type Occurrence of Romarchite
Relationship of Romarchite to other Species
| 4.AC.05 | Swedenborgite | NaBe4Sb5+O7 |
| 4.AC.10 | Brownmillerite | Ca2(Al,Fe3+)2O5 |
| 4.AC.10 | Srebrodolskite | Ca2Fe23+O5 |
| 4.AC.15 | Montroydite | HgO |
| 4.AC.20 | Litharge | PbO |
| 4.AC.25 | Massicot | PbO |
| 7.11.2 | Cassiterite | SnO2 |
| 7.11.4 | Schoenfliesite | Mg[Sn(OH)6] |
| 7.11.5 | Burtite | Ca[Sn(OH)6] |
| 7.11.6 | Vismirnovite | Zn[Sn(OH)6] |
| 7.11.7 | Wickmanite | Mn2+[Sn(OH)6] |
| 7.11.8 | Tetrawickmanite | Mn2+[Sn4+(OH)6] |
| 7.11.9 | Jeanbandyite | Fe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5) |
| 7.11.10 | Natanite | Fe2+[Sn(OH)6] |
| 7.11.11 | Mushistonite | (Cu,Zn,Fe2+)[Sn(OH)6] |
| 7.11.12 | Ferronigerite-2N1S | (Al,Fe,Zn)2(Al,Sn)6O11(OH) |
| 7.11.13 | Magnesionigerite | |
| 7.11.14 | Argutite | GeO2 |
| 7.11.15 | Brunogeierite | Fe22+Ge4+O4 |
| 7.11.16 | Stottite | Fe2+[Ge4+(OH)6] |
| 7.11.17 | Carboirite | FeAl2(GeO4)O(OH)2 |
| 7.11.18 | Otjisumeite | PbGe4O9 |
| 7.11.19 | Bartelkeite | Pb(Fe2+Ge)[Ge2O7](OH)2 · H2O |
| 7.11.20 | Massicot | PbO |
| 7.11.21 | Litharge | PbO |
| 7.11.22 | Minium | Pb3O4 |
| 7.11.23 | Plattnerite | PbO2 |
| 7.11.24 | Scrutinyite | α-PbO2 |
| 7.11.25 | Murdochite | PbCu6O8-x(Cl,Br)2x where x<=0.5 |
| 7.11.26 | Macedonite | PbTiO3 |
| 7.11.27 | Cesàrolite | Pb(Mn4+)3O6(OH)2 |
| 7.11.28 | Coronadite | Pb(Mn64+Mn23+)O16 |
| 7.11.29 | Quenselite | PbMnO2(OH) |
| 7.11.30 | Plumboferrite | Pb2(Fe3+,Mn2+,Mg)11O19 |
| 7.11.31 | Magnetoplumbite | (Pb,Mn)(Fe,Mn)12O19 |
| 7.11.32 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 |
Other Names for Romarchite
Name in Other Languages:
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 Romarchite
Reference List:
Canadian Mineralogist (1971): 10: 916.
The Canadian Mineralogist Vol. 41, pp. 649-657 (2003)
American Mineralogist (1972): 57: 1555.
Acta Crystallographica: B36: 2763-2765.
The Canadian Mineralogist Vol. 41, pp. 649-657 (2003)
American Mineralogist (1972): 57: 1555.
Acta Crystallographica: B36: 2763-2765.
Internet Links for Romarchite
mindat.org URL:
https://www.mindat.org/min-3442.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
Localities for Romarchite
This 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.
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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Bolivia | |
| The Canadian Mineralogist Vol. 41, pp. 649-657 (2003) |
Canada (TL) | |
| ORGAN, R.M. & MANDARINO, J.A. (1971): Romarchite and hydroromarchite, two new stannous minerals. Canadian Mineralogist 10, 916 (abstr.). |
China | P.M. Kartashov data |
| Pavel Kartashov | |
Jamaica | |
| Dunkle, S. E. (2002): Romarchite and Other Corrosion Phases on Metal Artifacts from the Queen Anne’s Revenge (1718). Thesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science in Geological Sciences |
Russia | |
| Pavel M. Kartashov analytical data (2005) |
| Pavel Kartashov specimen |
| Pavel M. Kartashov analytical data |
Saudi Arabia | |
| http://rruff.geo.arizona.edu/doclib/hom/romarchite.pdf. |
U.S. Virgin Islands | |
| Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p | |
| Alminas, Henry V.; Foord, Eugene E.; Tucker, Robert E. (1994) Geochemistry, mineralogy, and geochronology of the U.S. Virgin Islands USGS Bulletin 2057 36p | |
USA | |
| Dunkle, S. E. (2002): Romarchite and Other Corrosion Phases on Metal Artifacts from the Queen Anne’s Revenge (1718). Thesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science in Geological Sciences |
| The Canadian Mineralogist Vol. 41, pp. 649-657 (2003) |
| The Canadian Mineralogist Vol. 41, pp. 649-657 (2003) |
| Canadian Mineralogist 41:659-669 |
| R&M 66:3 pp 196-224 |
Neiva River, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia