Romarchite
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About Romarchite
Formula:
SnO
Crystal 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:
Crystallography of Romarchite
Crystal System:
Tetragonal
Cell Parameters:
a = 3.8 Å, c = 4.83 Å
Ratio:
a:c = 1 : 1.271
Unit Cell V:
69.75 ų (Calculated from Unit Cell)
Type Occurrence of Romarchite
Synonyms of Romarchite
Other Language Names for Romarchite
Common Associates
Associated Minerals Based on Photo Data:
Azurite | 1 photo of Romarchite associated with Azurite on mindat.org. |
Malachite | 1 photo of Romarchite associated with Malachite on mindat.org. |
Cerussite | 1 photo of Romarchite associated with Cerussite on mindat.org. |
Gold | 1 photo of Romarchite associated with Gold on mindat.org. |
Tin | 1 photo of Romarchite associated with Tin on mindat.org. |
Related Minerals - Nickel-Strunz Grouping
4.AC.05 | Swedenborgite | NaBe4Sb5+O7 | Hex. 6mm : P63mc |
4.AC.10 | Brownmillerite | Ca2(Al,Fe3+)2O5 | Orth. mm2 |
4.AC.10 | Srebrodolskite | Ca2Fe3+2O5 | Orth. mmm (2/m 2/m 2/m) : Pnma |
4.AC.15 | Montroydite | HgO | Orth. mmm (2/m 2/m 2/m) : Pmmn |
4.AC.20 | Litharge | PbO | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
4.AC.25 | Massicot | PbO | Orth. mmm (2/m 2/m 2/m) : Cmmm |
Related Minerals - Hey's Chemical Index of Minerals Grouping
7.11.2 | Cassiterite | SnO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
7.11.4 | Schoenfliesite | Mg[Sn(OH)6] | Iso. m3 (2/m 3) : Pn3 |
7.11.5 | Burtite | Ca[Sn(OH)6] | Iso. |
7.11.6 | Vismirnovite | Zn[Sn(OH)6] | Iso. |
7.11.7 | Wickmanite | Mn2+[Sn(OH)6] | Iso. m3 (2/m 3) : Pn3 |
7.11.8 | Tetrawickmanite | Mn2+[Sn4+(OH)6] | Tet. 4/m : P42/n |
7.11.9 | Jeanbandyite | Fe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5) | Tet. 4/m : P42/n |
7.11.10 | Natanite | Fe2+[Sn(OH)6] | Iso. m3m (4/m 3 2/m) : Pn3m |
7.11.11 | Mushistonite | (Cu,Zn,Fe2+)[Sn(OH)6] | |
7.11.12 | Ferronigerite-2N1S | (Al,Fe,Zn)2(Al,Sn)6O11(OH) | Trig. 3m (3 2/m) : P3m1 |
7.11.13 | Magnesionigerite | Trig. | |
7.11.14 | Argutite | GeO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
7.11.15 | Brunogeierite | Ge4+Fe2+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
7.11.16 | Stottite | Fe2+[Ge4+(OH)6] | Tet. |
7.11.17 | Carboirite | FeAl2(GeO4)O(OH)2 | Tric. |
7.11.18 | Otjisumeite | PbGe4O9 | Tric. |
7.11.19 | Bartelkeite | Pb(Fe2+Ge)[Ge2O7](OH)2 · H2O | Mon. 2/m : P21/m |
7.11.20 | Massicot | PbO | Orth. mmm (2/m 2/m 2/m) : Cmmm |
7.11.21 | Litharge | PbO | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
7.11.22 | Minium | Pb3O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
7.11.23 | Plattnerite | PbO2 | Tet. 4/mmm (4/m 2/m 2/m) |
7.11.24 | Scrutinyite | α-PbO2 | Orth. |
7.11.25 | Murdochite | PbCu6O8-x(Cl,Br)2x where x<=0.5 | Iso. m3m (4/m 3 2/m) : Fm3m |
7.11.26 | Macedonite | PbTiO3 | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
7.11.27 | Cesàrolite | Pb(Mn4+)3O6(OH)2 | |
7.11.28 | Coronadite | Pb(Mn4+6Mn3+2)O16 | Mon. 2/m |
7.11.29 | Quenselite | PbMnO2(OH) | Mon. 2/m : P2/b |
7.11.30 | Plumboferrite | Pb2(Fe3+,Mn2+,Mg)11O19 | Trig. 3 2 : P3 1 2 |
7.11.31 | Magnetoplumbite | (Pb,Mn)(Fe,Mn)12O19 | Hex. |
7.11.32 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. |
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:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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
mindat.org URL:
https://www.mindat.org/min-3442.html
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External Links:
Mineral Dealers:
Localities for Romarchite
Locality List




All localities listed without proper references should be considered as questionable.
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 2018 |
Pavel M. Kartashov analytical data (2005) | |
| Pavel M. Kartashov analytical data |
Saudi Arabia | |
| http://rruff.geo.arizona.edu/doclib/hom/romarchite.pdf.; Matzko, J. J., Evans, H. T., Jr., Mrose, M. E. and Aruscavage, P. (1985) Abhurite, a new tin hydroxychloride mineral, and a comparative study with a synthetic basic tin chloride. Canadian Mineralogist. 23, 233-240 |
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 |
| 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 |
Neiva River, Nizhnii Tagil, Sverdlovsk Oblast, Russia