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Montanite

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Formula:
Bi2(TeO6) · 2H2O
Colour:
Yellowish, greenish to white
Lustre:
Waxy, Dull
Name:
From the locality where it was found in the state of Montana, USA.
An alteration product of Tetradymite.


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Classification of MontaniteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable
7.CD.60

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
D : With only large cations
Dana 7th ed.:
33.2.2.1
33.2.2.1

33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero
28.4.14

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates

Physical Properties of MontaniteHide

Waxy, Dull
Transparency:
Opaque
Colour:
Yellowish, greenish to white
Comment:
Soft

Optical Data of MontaniteHide

Type:
Biaxial (-)
RI values:
nα = 2.090 nβ = 2.090
Max Birefringence:
δ = 2.090
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v extreme

Chemical Properties of MontaniteHide

Formula:
Bi2(TeO6) · 2H2O
IMA Formula:
Bi3+2Te6+O6 · 2H2O

Crystallography of MontaniteHide

Morphology:
Earthy to compact.

Type Occurrence of MontaniteHide

Other Language Names for MontaniteHide

German:Montanit
Simplified Chinese:碲铋华
Spanish:Montanita
Traditional Chinese:碲鉍華

Common AssociatesHide

Associated Minerals Based on Photo Data:
Tetradymite2 photos of Montanite associated with Tetradymite on mindat.org.
Gold1 photo of Montanite associated with Gold on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.CD.Campostriniite(Bi3+,Na)3(NH4,K)2Na2(SO4)6·H2OMon. 2/m : B2/b
7.CD.05MatteucciteNaHSO4 · H2OMon.
7.CD.10MirabiliteNa2SO4 · 10H2OMon. 2/m
7.CD.15Lecontite(NH4,K)NaSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CD.20HydroglauberiteNa10Ca3(SO4)8 · 6H2OMon.
7.CD.25EugsteriteNa4Ca(SO4)3 · 2H2OMon.
7.CD.30GörgeyiteK2Ca5(SO4)6 · H2OMon.
7.CD.35Koktaite(NH4)2Ca(SO4)2 · H2OMon.
7.CD.35SyngeniteK2Ca(SO4)2 · H2OMon. 2/m : P21/m
7.CD.40GypsumCaSO4 · 2H2OMon. 2/m
7.CD.45BassaniteCaSO4 · 0.5H2OMon. 2 : B2
7.CD.50Zircosulfate(Zr,Ti)(SO4)2 · 4H2OOrth.
7.CD.55SchieffelinitePb10Te6+6O20(OH)14(SO4)(H2O)5Orth. mmm (2/m 2/m 2/m) : Cmcm
7.CD.65OmongwaiteNa2Ca5(SO4)6 · 3H2OMon. 2 : B2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.4.1XocomecatliteCu3(TeO4)(OH)4Orth.
28.4.2CarlfriesiteCaTe4+2Te6+O8Mon. 2/m : B2/b
28.4.3YafsoaniteCa3Zn3(TeO6)2Iso. m3 (2/m 3)
28.4.4TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2OOrth.
28.4.5OboyeriteH6(Pb,Ca)6(Te4+O3)3(Te6+O6)2 · 2H2OTric.
28.4.6SchieffelinitePb10Te6+6O20(OH)14(SO4)(H2O)5Orth. mmm (2/m 2/m 2/m) : Cmcm
28.4.7GirditeH2Pb3(Te4+O3)(Te6+O6)Mon. m
28.4.8KhinitePb2+Cu2+3[Te6+O6](OH)2Orth. mm2 : Fdd2
28.4.9Khinite-3TPb2+Cu2+3Te6+O6(OH)2Trig. 3 : P32
28.4.10DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.11KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.12CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
28.4.13TlapalliteH6(Ca,Pb)2(Cu,Zn)3(TeO3)4(TeO6)(SO4)
28.4.15KuranakhitePbMn4+Te6+O6Orth.
28.4.16CuzticiteFe3+2(TeO6) · 3H2OHex.
28.4.17YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O

Other InformationHide

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 MontaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Genth (1868) American Journal of Science: 45: 318.
Mingaye (1888) Australasian Association for the Advancement of Science: 1: 116.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 112.
Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 636-637.
Doklady Akademii Nauk SSSR (1980): 255: 968.

Internet Links for MontaniteHide

Localities for MontaniteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • New South Wales
    • Murray Co.
      • Bullongong
        • Jingera
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: 637.
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: 637.
  • Western Australia
    • Kalgoorlie-Boulder Shire
      • Kalgoorlie-Boulder
        • Golden Mile Mines
Simpson, E.S. (1948), Minerals of Western Australia, Vol 2, pp 231, 1948
Austria
 
  • Carinthia
    • Hohe Tauern
      • Ankogel group
        • Ankogel area
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
      • Goldberg group
        • Innerfragant
Feitzinger, G. (1992) Gold-Silber-Vererzungen und historischer Bergbau im Zirknitz- und Wurtental (Sonnblickgruppe, Hohe Tauern, Kärnten). Lapis, 17 (5), 13-30.
            • Alteck
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Belgium
 
  • Luxembourg Province
    • Stavelot Massif
      • Vielsalm
        • Cahai (Cahay)
BLONDIEAU M., PUCCIO S., COMPERE P., HATERT F. (2017) - Données nouvelles sur quelques espèces minérales de Vielsalm et de Salmchâteau. Bulletin de la Société Royale des Sciences de Liège, Vol. 86, p. 1 - 48
China
 
  • Jiangxi Province
    • Ganzhou Prefecture
      • Anyuan Co.
Yingchen Ren, Minqing Cheng, and Cunchang Wang (1986): Mineral Deposits 5(2), 63-74
Hungary
 
  • Heves Co.
    • Mátra Mts
      • Gyöngyössolymos
Szakáll-Gatter-Szendrei:Hungarian Mineral Species,2005
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Rudawy Janowickie Mts
      • Czarnów
        • Rędziny
Gołębiowska, B., Pieczka, A., Parafiniuk, J. (2011): New data on weathering of bismuth sulfotellurides at Rędziny, Lower Silesia, Southwestern Poland. Mineralogia Special Papers: 38: 95-96
Slovakia
 
  • Banská Bystrica Region
    • Poltár Co.
      • Kokava nad Rimavicou
Ferenc Š, Bakoš F.,2006: Au-Bi-Te mineralizácia v sineckej astrižnej zóne (Kokava nad Rimavicou) – nový typ mineralizácie v Západných Karpatoch. Min.Slovaca, 38, 223-240
    • Rimavská Sobota Co.
Bakoš F., Ferenc Š., Hraško Ľ.,2006: Nový výskyt hydrotermálnej Au-Bi-Te mineralizácie v oblasti Krokavy (Slovenské Rudohorie, veporikum). Min.Slovaca, 38, 241-252
    • Žarnovica Co.
Sejkora J., Litochleb J., Černý P., Ozdín D., 2006: Bi-Te minerálna asociácia zo Župkova (Vtáčnik, Slovenská republika). Mineralia Slovaca, 36, 3-4, 303-315.
Sejkora J., Litochleb J., Černý P., Ozdín D. (2004) Bi-Te minerálna asociácia zo Župkova (Vtáčnik, Slovenská republika). Miner. Slovaca, 36, 3-4, 303-315.
Tajikistan
 
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
    • Zeravshan Range
      • Pendzhikent (Penjikent; Panjakent)
        • Chinorsai intrusion
Novgorodova, M.I., Generalov, M.Ye., Gorshkov, A.I., Sivtsov, A.V., Uspenskiy, Ye.I (1991) Association of native gold with bismuthyl carbonates and tellurates. Izvestiya Akad. Nauk SSSR, Ser. Geol.: 4: 102-108 (in Russian); in: Jambor, J.L., Grew, E.S. (1993): New mineral Names. :merican Mineralogist: 78: 234
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 6.
  • Colorado
    • Boulder Co.
      • Gold Hill District
Minerals of Colorado (1997) E.B. Eckels
  • Montana
    • Silver Bow Co.
American Journal of Science (1868): 95: 318; 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: 637.; USGS Bull 574
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
  • Nevada
    • Lander Co.
NBMG Spec. Pub. 31 Minerals of Nevada
      • Lewis District
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Doña Ana Co.
      • Organ Mts
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: 637; Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996).
          • Memphis Mine
Minerals of New Mexico 3rd ed.; American Mineralogist (1937) 22: 1065-1069.
  • North Carolina
    • Burke Co.
      • Brindletown
Rocks & Min.:60:86.
    • Davidson Co.
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 1076.; Genth F A (1868) Contributions to mineralogy - No. VII, The American Journal of Science and Arts, 95, 305-321
Genth,F.A and Kerr,W.C,1881,Minerals and Mineral Localities of North Carolina,Geologic Survey
Genth,F.A and Kerr,W.C,1881,Minerals and Mineral Localities of North Carolina,Geologic Survey
Mineral and/or Locality  
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