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Roméite

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Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy
© Paolo Grosso

Show Roméite Photos (39)
Formula:
(Ca,Fe,Mn,Na)
 
2
(Sb,Ti)
 
2
O
 
6
(O,OH,F)
System:IsometricColour:Yellowish to reddish ...
Hardness:5½ - 6½
Name:
The name is after Jean Baptiste Louis Romé de L'Isle (1736-1790), eminent early French crystallographer.
Isostructural with:Pyrochlore


Stibiconite Group.

A mineral occurring in some metamorphosed manganese-bearing hydrothermal deposits.

Classification of Roméite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/C.11-40
Nickel-Strunz 10th (pending) edition ID:4.DH.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
Dana 8th edition ID:44.1.1.3

44 : ANTIMONATES
1 : A2X2O6(O,OH,F)
Hey's CIM Ref.:24.2.3

24 : Antimonates and Antimonites
2 : Antimonates of Be, Mg, Ca, Zn or Hg
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Type Occurrence of Roméite

Type Locality:Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Place of Conservation of Type Material:Natural History Museum, Paris, France: #41.151, #41.152.
Year of Discovery:1841
Associated Minerals at type locality:
Epidote

Occurrences of Roméite

Geological Setting:Metamorphosed hydrothermal manganese deposits

Physical Properties of Roméite

Lustre:Sub-Adamantine, Vitreous, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Yellowish to reddish brown, dark brown, red, light yellow
Streak:Nearly colourless, pale yellow.
Hardness (Mohs):5½ - 6½
Cleavage:Poor/Indistinct
On {111}, poor.
Fracture:Irregular/Uneven, Splintery
Density (measured):4.95 - 5.41 g/cm3
Density (calculated):5.28 g/cm3

Crystallography of Roméite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Space Group Setting:Fd3m
Cell Parameters:a = 10.28(4) Å
Unit Cell Volume:V 1,086.37 ų (Calculated from Unit Cell)
Z:8
Morphology:Crystals octahedra, exhibiting subordinate forms {001}, {110}, {112}, {113}, and {133}. Crystalline aggregates, massive.
Twinning:Rare on {111}.
Crystal Atlas:
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Romeite no.1 - Goldschmidt (1913-1926)
Romeite no.3 - Goldschmidt (1913-1926)

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Optical Data of Roméite

Type:Isotropic
RI values: n = 1.817 - 1.854
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:Very High
Comments:May be anomalously biaxial, weak to moderate, and which may be distributed in zones or sectors.

The indices of refraction vary markedly with composition (e.g.: 1.817 to 1.88).

Chemical Properties of Roméite

Formula:
(Ca,Fe,Mn,Na)
 
2
(Sb,Ti)
 
2
O
 
6
(O,OH,F)
Essential elements:Ca, O, Sb
All elements listed in formula:Ca, F, Fe, H, Mn, Na, O, Sb, Ti

Relationship of Roméite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DH.05Brannerite
(U
4+
 
,Ca)(Ti,Fe
3+
 
)
 
2
O
 
6
4.DH.05Orthobrannerite
U
4+
 
U
6+
 
Ti
 
4
O
 
12
(OH)
 
2
4.DH.05Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
4.DH.10Kassite
CaTi
 
2
O
 
4
(OH)
 
2
4.DH.10Lucasite-(Ce)
CeTi
 
2
(O,OH)
 
6
4.DH.15Alumotungstite
(W,Al)(O,OH)
 
3
4.DH.15Bariomicrolite
Ba(Ta,Nb)
 
2
(O,OH)
 
7
4.DH.15Bariopyrochlore
(Ba,Sr)
 
2-x
(Nb,Ti)
 
2
(O,OH)
 
7
4.DH.15Betafite
(Ca,U)
 
2
(Ti,Nb)
 
2
O
 
6
(OH)
4.DH.15Bismutomicrolite
(Bi,Ca)(Ta,Nb)
 
2
O
 
6
(OH)
4.DH.15Calciobetafite
(Ca,RE,Th,U)
 
2
(Nb,Ta,Ti)
 
2
O
 
7
4.DH.15Ceriopyrochlore-(Ce)
(Ce,Ca,Y)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
4.DH.15Cesstibtantite
(Cs,Na)SbTa
 
4
O
 
12
4.DH.15Ferritungstite
(W,Fe
3+
 
)(O,OH)
 
3
4.DH.15Jixianite
Pb(W,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DH.15Kalipyrochlore
(K,Sr)
 
2-x
Nb
 
2
O
 
6
(O,OH)·nH
 
2
O
4.DH.15Microlite
(Ca,Na)
 
2
Ta
 
2
O
 
6
(O,OH,F)
4.DH.15Natrobistantite
(Na,Cs)Bi(Ta,Nb,Sb)
 
4
O
 
12
4.DH.15Plumbopyrochlore
(Pb,Ca,Y,U)
 
2-x
(Nb,Ta,Ti)
 
2
O
 
6
(OH,O)
4.DH.15Plumbomicrolite
(Pb,Ca,U)
 
2-x
(Ta,Nb,Sn)
 
2
O
 
6
(O,[])
4.DH.15Plumbobetafite
(Pb,U,Ca)(Ti,Nb)
 
2
O
 
6
(OH,F)
4.DH.15Pyrochlore
(Ca,Na)
 
2
Nb
 
2
O
 
6
(OH,F)
4.DH.15Stibiomicrolite
(Sb,Ca,Na)
 
2
(Ta,Nb)
 
2
O
 
7
4.DH.15Strontiopyrochlore
(Sr,Ce,Ca)
 
2-x
(Nb,Fe)
 
2
(O,OH)
 
7
4.DH.15Stannomicrolite
(Sn,Fe,Mn)
 
2
(Ta,Nb,Sn)
 
2
(O,OH)
 
7
4.DH.15Stibiobetafite
(Sb,Ca)
 
2
(Ti,Nb,Ta)
 
2
(O,OH)
 
7
4.DH.15Uranmicrolite
(U,Ca,Ce)
 
2
(Ta,Nb)
 
2
O
 
6
(OH,F)
4.DH.15Uranpyrochlore
(U,Ca,Ce)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
4.DH.15Yttrobetafite-(Y)
(Y,U,Ce)
 
2
(Ti,Nb,Ta)
 
2
O
 
6
OH
4.DH.15Yttropyrochlore-(Y)
(Y,Ca,U)
 
1-2
(Nb,Ta,Ti)
 
2
(O,OH)
 
7
4.DH.15Fluornatromicrolite
(Na,Ca,Bi)
 
2
Ta
 
2
O
 
6
F
4.DH.15Bismutopyrochlore
(Bi,U,Ca,Pb)
 
1+x
(Nb,Ta)
 
2
O
 
6
(OH)·nH
 
2
O
4.DH.15Thorian Pyrochlore
4.DH.15Elsmoreite
WO
 
3
·0.5H
 
2
O
4.DH.20Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
4.DH.20Bindheimite
Pb
 
2
Sb
 
2
O
 
6
(O,OH)
4.DH.20Monimolite
(Pb,Ca,Fe)
 
3
Sb
 
2
O
 
7
4.DH.20Partzite
Cu
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Stetefeldtite
Ag
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Stibiconite
Sb
3+
 
Sb
5+
2
O
 
6
(OH)
4.DH.25Rosiaite
PbSb
5+
2
O
 
6
4.DH.30Zirconolite
CaZrTi
 
2
O
 
7
4.DH.35Liandratite
U(Nb,Ta)
 
2
O
 
8
4.DH.35Petscheckite
UFe(Nb,Ta)
 
2
O
 
8
4.DH.40Ingersonite
Ca
 
3
MnSb
 
4
O
 
14
4.DH.45Pittongite
Na
 
0.22
(W,Fe
3+
 
)(O,OH)
 
3
 · 0.44H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
24.2.1Swedenborgite
NaBe
 
4
SbO
 
7
24.2.2Byströmite
MgSb
 
2
O
 
6
24.2.4Ordoñezite
ZnSb
 
2
O
 
6
24.2.5Theisite
Cu
 
5
Zn
 
5
[(OH)
 
7
|(AsO
 
4
,SbO
 
4
)]
 
2
24.2.6Shakhovite
Hg
 
4
SbO
 
3
(OH)
 
3

Other Names for Roméite

Other Languages:
French:Roméine
German:Romeit
Russian:Ромеит
Spanish:Romeita
Varieties:
AtopiteLewisiteMauzeliiteSchneebergite (of Brezina)Weslienite

Other Information

Other Information:Insoluble in acids. Decomposed by fusion with sodium carbonate.
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 Roméite

Reference List:Damour (1841) Annales des mines: 20: 247 (as Roméine).

Damour (1853): 3: 179 (as Roméine).

Bertrand (1881) Bulletin de la Société française de Minéralogie: 4: 237.

Hussak and Prior (1895) Mineralogical Magazine: 11: 80.

Sjögren (1895) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 17: 313.

Hussak (1905) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 240.

Lacroix, A. (1910) Minéralogie de la France et des ses colonies, Paris. 5 volumes: vol. 4: 360.

Goldschmidt, V. (1913) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 1: 1: 121 (atopite variety)

Pelloux (1913) Mus. Civ. Storia nat. Genova, Ann.: [3], 6: 22.

Schaller (1916) U.S. Geological Survey Bulletin 610: 81, 95.

Rose (1919) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 268.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 128, 130.

Machatschki (1932) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 73: 159.

Machatschki (1932) Chemie der Erde, Jena: 7: 56.

Machatschki and Zedlitz (1932) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 82: 72.

Zedlitz (1932) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 81: 253.

Aminoff (1933) Ak. Stockholm, Handl.: [3]: 11: 14.

Hintze (1937) Erg.-Bd.: 571.

Pabst (1939) American Mineralogist: 24: 575.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1020-1022.

American Mineralogist (1952): 37: 982-998.

Welin, E. (1968) X-ray powder data for minerals from Långban and the related mineral deposits of Central Sweden. Arkiv Mineral. Geol., 4(30), 499–541.

Dunn, P.J. & Leavens, P.B. (1980) American Mineralogist: 65: 196-199.

Dunn, P.J., et al (1980) American Mineralogist: 65: 1143-1145.

Dunn, Pete J. (1995): Franklin and Sterling Hill New Jersey: the world’s most magnificent mineral deposits, part 4: 604.

Brugger, J., Gieré, R., Graeser, S. and Meisser, N. (1997): Crystal chemistry of roméite. Contributions to Mineralogy and Petrology: 127: 136-146.

Lapis (2000): 25(3): 30-36.

Internet Links for Roméite

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  • Raman and XRD data at RRUFF project
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    Localities for Roméite

    Hide Locality List
    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.
    Algeria
     
    • Constantine Province
      • Constantine
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1022.
    Australia
     
    • South Australia
      • Flinders Ranges
        • North Flinders Ranges
          • Lyndhurst
    		No reference listed
    Austria
     
    • Salzburg
      • Lungau
        • Taurach valley
          • Fuchs Alp - Fuchs lake area (incl. Schwarz Alp; Schwarz lake; Kohlsberg Alp)
    		A. Strasser: Die Minerale Salzburgs (1989)
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Brixlegg - Rattenberg
              • Geyer - Silberberg District
    		Lapis 19(7/8):13-78 (1994)
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Ouro Preto
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1022.
    [var: Lewisite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1022; Contributions to Mineralogy and Petrology (1997): 127: 136; American Mineralogist (1998): 83: 403; American Mineralogist (1999): 84: 1198.; Hussak and Prior (1900) Mineralogical Magazine: 12: 244.
    China
     
    • Guangxi Zhuang Autonomous Region
    		Dajing Chen, Mingshou Yang, and Yonglin Zhang (2001): Mineral Deposits [Kuangchuang Dizhi] 20(3), 251-258.
    • Guizhou Province
      • Qianxi'nan Autonomous Prefecture
        • Qinglong Co.
    		Dajing Chen and Mingshou Yang (2000): Acta Geologica Sinica 74(3), 565-569.
    France
     
    • Auvergne
      • Cantal
    		Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    • Rhineland-Palatinate
      • Eifel Mts
        • Bad Neuenahr-Ahrweiler
          • Ahrbrück
            • Martinsknipp hill
    		Beyer, H. (1978): Über Haldenfunde aus den Antimonitgängen von Ahrbrück (Eifel)..., Der Aufschluß, 29, 401-408
        • Prüm
          • Bleialf
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Italy
     
    • Aosta Valley
      • Saint-Marcel
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1021; Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
    • Lombardy
      • Brescia Province
        • Adamello-Brenta Natural Park
          • Adamello Massif
            • Mt. Foppa
    		Pezzotta, Federico and Guastoni, Alessandro, The New Discovery of a LCT Pegmatite in the Adamello Massif, Central Southern Alps, Italy; Museo Civico di Storia Naturale, Milan, Italy.
    • Trentino-Alto Adige
      • Bolzano Province (South Tyrol)
        • Passiria Valley (Passeier Valley)
    		AA. VV., 1996. Collezionare minerali. Hobby & Work.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Iwaki
    		Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62. ; Mineralogical Journal Vol. 18 (1996) , No. 4 pp 155-160
    New Zealand
     
    • South Island
      • Hindon
    		[var: Lewisite]
    Norway
     
    • Nordland
      • Sørfold
    		G. Raade, U. Kolitsch and T. A. Husdal (2006): Si-rich bergslagite from a granitic pegmatite at Tennvatn, north Norway. GFF 128, 65-68.
    Republic of Macedonia
     
    • Roszdan
    		[Rieck, B. (1993) - Famous mineral localities: Allchar, Macedonia, Mineralogical Record, 24 (6), 437-449]
    Slovakia
     
    • Bratislava Region
      • Malé Karpaty Mts
        • Pernek
          • Krížnica
    		Koděra, M. et al., 1986 a 1Sejkora S., Ozdín D., Vitáloš J., Tuček P., Ďuďa R., 2004: Schafarzikit von Pernek, Revier Pezinok (Slowakei). Lapis, 29, 12, 27-36.990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Prešov Region
      • Northern Slanské Mts
    		Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
    • Žilina Region
      • Northern Low Tatra Mts
    		Pauliš,P.,Ďuďa,R.,2002: Nejzajímavejší mineralogická naletište Slovenska. Kuttna,K.Hora, 136p
    Sweden
     
    • Dalarna
      • Hedemora
        • Garpenberg
    		Kjell Gatedal
    • Värmland
      • Filipstad
    		[var: Atopite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1021.
        • Nordmark
    		[var: Mauzeliite] Sjögren (1895) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 17: 313; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1021..
    Mineralogical Magazine (1998) 62 (3), 395-407
        • Pajsberg
    • Västmanland
      • Hällefors
        • Grythyttan
    		Kjell Gatedal
      • Lindesberg
    No reference listed
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Hinterrhein Valley
        • Ferrera Valley
          • Ausserferrera
    		Brugger, J., Cabalzar, W., Weibel, M. (1993): Romeit aus den Schweizer Alpen. Mineralienfreund 31(4), 1-7; Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
          • Calantgil
    		Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
          • Starlera Valley
    		Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
    Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
    Thailand
     
    • Phrae Province
    		Dill, H.G., Melcher, F., and Botz, R. (2008): Ore Geology Reviews 34, 242-262.
    UK
     
    • England
      • Cornwall
        • Callington District
          • Gunnislake Area
    		No reference listed
    Ukraine
     
    • Donets'k Oblast' (Donetsk Oblast')
      • Gorlovka
        • Novyy Donbass
    		Möckel, S. & Frischmann, N. (1992): Mineralien der Quecksilberlagerstätte Nikitovka in der Ukraine. Mineralien-Welt, 3, 14-15. (in German)
    USA
     
    • Arizona
      • Cochise Co.
        • Dragoon Mts
          • Johnny Lyon Hills
            • Tres Alamos Wash
    		[var: Lewisite] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 136, 276, 323.
    • Nevada
      • Churchill Co.
        • Lake District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Pershing Co.
        • Rye Patch District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Dunn(1995):Pt4:604.
    Dunn, P.J. & Leavens, P.B. : American Mineralogist (1980): 65: 196-199; Dunn, P.J., et al (1980): American Mineralogist: 65: 1143-1145; Dunn, Pete J. (1995): Franklin and Sterling Hill New Jersey: the world’s most magnificent mineral deposits, part 4: 604.
    • Utah
      • Utah Co.
        • Oquirrh Mts
          • Fairfield
            • Clay Canyon
    		[var: Lewisite] Rocks & Minerals (1970): 45(11): 667-674.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Oct 2009 16:40:11