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Roméite

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

Show Roméite Photos (26)
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 Baptists Louis Romé de L'Isle, 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

Physical Properties of Roméite

Lustre:Sub-Adamantine, Vitreous, Greasy
Diaphaneity (Transparency):Transparent, Translucent, Translucent on thin edges
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)
Cell Parameters:a = 10.28Å
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
UTi
 
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
(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,Y,U,Ca)
 
2-x
Nb
 
2
O
 
6
(OH)
4.DH.15Plumbomicrolite
(Pb,Ca,U)
 
2
Ta
 
2
O
 
6
(OH)
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)
 
0.66
(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,Na,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
SbSb
 
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

French names:
Roméine
German names:
Romeit
Russian names:
Ромеит
Spanish names:
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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    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.
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    (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.
    China
     
    • Guizhou Province
      • Qianxi'nan Autonomous Prefecture
        • Qinglong Co.
    		Dajing Chen and Mingshou Yang (2000): Acta Geologica Sinica 74(3), 565-569.
    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.
    • 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.
    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
    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.
        • 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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