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Strüverite

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Formula:
(Ti,Ta,Fe)O
 
2
Hardness:6 - 6½
Name:Named after Giovanni Strüver (1842-1915), Professor of Mineralogy, University of Rome, Rome, Italy.
A variety of Rutile

A Ta- and Fe-bearing variety of rutile.
Compare also ilmenorutile.

Classification of Strüverite

Dana 8th edition ID:4.4.1.3

4 : SIMPLE OXIDES
4 : AX2
Hey's CIM Ref.:18.1.50

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
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Physical Properties of Strüverite

Hardness (Mohs):6 - 6½

Optical Data of Strüverite

Type:Uniaxial (+)

Chemical Properties of Strüverite

Formula:
(Ti,Ta,Fe)O
 
2
Simplified for copy/paste:(Ti,Ta,Fe)O2
Essential elements:O, Ti
All elements listed in formula:Fe, O, Ta, Ti

Relationship of Strüverite to other Species

Related Minerals - Hey's Index Grouping:

- +
18.1.1Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
18.1.2Lueshite
NaNbO
 
3
18.1.3Natroniobite
NaNbO
 
3
18.1.4Franconite
Na
 
2
Nb
 
4
O
 
11
· 9H
 
2
O
18.1.5Natrotantite
Na
 
2
Ta
 
4
O
 
11
18.1.6Irtyshite
Na
 
2
(Ta,Nb)
 
4
O
 
11
18.1.7Rankamaite
(Na,K)
 
3
(Ta,Nb,Al)
 
11
(O,OH)
 
31
18.1.8Hydropyrochlore
(H
 
2
O,□)
 
2
Nb
 
2
(O,OH)
 
6
(H
 
2
O)
18.1.9Calciotantite
CaTa
 
4
O
 
11
18.1.10Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
18.1.11Microlite Group
18.1.12Belyankinite
Ca
 
1-2
(Ti,Nb)
 
5
O
 
12
· 9H
 
2
O (?)
18.1.13Latrappite
(Ca,Na)(Nb,Ti,Fe)O
 
3
18.1.14Hochelagaite
(Ca,Na,Sr)(Nb,Ti,Si,Al)
 
4
O
 
11
· 8H
 
2
O
18.1.15Bariomicrolite (of Hogarth 1977)
18.1.16Parabariomicrolite
BaTa
 
4
O
 
10
(OH)
 
2
· 2H
 
2
O
18.1.17Bariopyrochlore (of Hogarth 1977)
18.1.18Alumotantite
AlTaO
 
4
18.1.19Simpsonite
Al
 
4
(Ta,Nb)
 
3
O
 
13
(OH,F)
18.1.20Sosedkoite
(K,Na)
 
5
Al
 
2
(Ta,Nb)
 
22
O
 
60
18.1.21Thoreaulite
(Sn
2+
 
,Pb)(Ta,Nb)
 
2
O
 
6
18.1.22Stannomicrolite (of Hogarth 1977)
18.1.23Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
18.1.24Changbaiite
PbNb
 
2
O
 
6
18.1.25Plumbopyrochlore (of Skorobogatova et al.)
18.1.26Plumbomicrolite (of Hogarth 1977)
18.1.27Stibiocolumbite
Sb(Nb,Ta)O
 
4
18.1.28Stibiotantalite
Sb(Ta,Nb)O
 
4
18.1.29Natrobistantite
18.1.30Cesplumtantite
(Cs,Na)
 
2
(Pb,Sb
3+
 
)
 
3
Ta
 
8
O
 
24
18.1.31Stibiomicrolite (of Groat et al.)
18.1.32Cesstibtantite
18.1.34Bismutotantalite
Bi(Ta,Nb)O
 
4
18.1.35Bismutomicrolite (of Hogarth 1977)
18.1.36Tantalite-(Mn)
MnTa
 
2
O
 
6
18.1.37Gerasimovskite
(Mn,Ca)(Nb,Ti)
 
5
O
 
12
· 9H
 
2
O
18.1.38Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
18.1.39Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
18.1.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
18.1.41Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
18.1.42Columbite-(Fe)
FeNb
 
2
O
 
6
18.1.43Tantalite-(Fe)
FeTa
 
2
O
 
6
18.1.44Columbite
(Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.45Tantalite
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.46Tapiolite
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.47Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.48Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.51 Staringite
(Fe,Mn)
 
x
(Ta,Nb)
 
2x
Sn
 
6-3x
O
 
12

Other Names for Strüverite

Synonyms:
Strüverite (of Zambonini)
Other Languages:
German:Strüverit
Russian:Стрюверит
Simplified Chinese:钽金红石
Spanish:Strüverita

Other Information

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 Strüverite

Reference List:

- +
Rend.Accad.Sci.fis.mat., Napoli (1907), ser.3, 13, 35

Internet Links for Strüverite

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  • External Links:
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  • Localities for Strüverite

    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.
    Australia
     
    • Western Australia
      • Ashburton Shire
        • Nanutarra Station
    Pegmatites of Western Australia; M Jacobson, M Calderwood, B Grguric; Hesperian Press, Perth, 2007.
      • Bridgetown-Greenbushes Shire
    Jacobson., M., Calderwood, M., Grguric, B.(2007): Pegmatites of Western Australia
        • Greenbushes Tinfield
    Econ Geol (1995) 90:616-635
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Conselheiro Pena
    Specimen in the collection of Richard Gaines [Rock Currier 2010]
    • Paraíba
      • Borborema mineral province
        • Frei Martinho
    Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
        • Junco do Seridó
          • Alto do Lira
    Revista Brasileira de Geociências 21(1):34-40 (1991).
    Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
        • Nova Palmeira
    Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.; Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182
    Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., & Da Silva, M. R. (2013). Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58(2), 79-90.
    • Rio Grande do Norte
      • Borborema mineral province
        • Acari
    Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    Canada
     
    • Ontario
      • Kenora District
        • Paterson Lake Area
    ontariominerals.com
    Tindle, A.G., Breaks, F.W., and Selway, J.B. (2002) Tourmaline in petalite-subtype gramitic pegmatites: evidence of fractionation and contamination from Pakeagama Lake and Separation Lake areas of northwestern Ontario, Canada. Canadian Mineralogist, 40, 753-788.
      • Renfrew Co.
        • Lyndoch Township
    ontariominerals.com
    China
     
    • Guangxi Zhuang Autonomous Region
      • Guilin Prefecture
        • Gongcheng Co.
          • Limu Ta-Sn ore field
    Jinchu Zhu, Renke Li, Fuchun Li, Xiaolin Xiong, Fengying Zhou, and Xiaolong Huang (2001): Mineralium Deposita 36(5), 393-405.
    Jinchu Zhu, Renke Li, Fuchun Li, Xiaolin Xiong, Fengying Zhou, and Xiaolong Huang (2001): Mineralium Deposita 36(5), 393-405.
    Jinchu Zhu, Renke Li, Fuchun Li, Xiaolin Xiong, Fengying Zhou, and Xiaolong Huang (2001): Mineralium Deposita 36(5), 393-405.; Pengfei Zhou, Dongsheng Ma, Yang Cai, Haifeng Ding, and Chunyan Yao (2009): Geological Journal of China Universities 15(3), 417-428
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • South Bohemia Region
        • Písek
    A. Tomek photo
    Finland
     
    • Southwestern Finland Region
      • Somero
    Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, 370 pp
    France
     
    • Provence-Alpes-Côte d'Azur
      • Var
        • Le Pradet
    [UKJMM 2:11-15 "Cap Gronne Secondary Copper and Lead - W.R. van den Berg"]
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Ossola Valley
          • Vigezzo Valley
            • Craveggia
    Daniele Ravagnani - I giacimenti uraniferi italiani - Gruppo Min. Lombardo - Museo Civico di Storia Naturale di Milano, 1974 and Vittorio Mattioli (1978) - Nota sulla titanite tantalifera e sulla struverite della pegmatite di Pian dei Lavonchi - Rivista Mineralogica Italiana, Milano, Vol.9, fasc. 1, pp.34-35
            • Druogno
              • Orcesco
    Callegari A., Mattioli V., 2002. Val Vigezzo: novità mineralogiche. Riv. Miner. Ital., 2: 78-80.
    • Tuscany
      • Livorno Province
        • Elba Island
          • Campo nell'Elba
            • San Piero in Campo
    P. Orlandi, P.B. Scortecci (1983) - Minerali delle pegmatiti elbane. Cinque nuove segnalazioni. - Riv. Min. It., VII, 4: 97-112
    Kazakhstan
     
    • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
    World of Stones, 1995, Vol. 8, p. 24, A.A. Eseev, Kazakhstan and Middle East - A brief moneralogical guide.
      • Betpakdala Desert (Bet-Pak-Dal Desert)
    Jeremolenko, V. (2002): Kara-Oba: Mineralogische Perle der Betpak-Ebene bei Dzhambul, Kasachstan. Lapis 27 (4), 13-34 + 50
    Madagascar
     
    • Antananarivo Province
      • Analamanga Region
        • Ankazobe Pegmatite Field
          • Anjozorobe District
    Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris, p 232
      • Vakinankaratra Region
        • Antsirabé 2 District
          • Sahanivotry Manandona Commune
    Moore, T. (2008): Whats New in Minerals. Dallas Show 2008. Mineralogical Record. 39, p 332
        • Betafo District
          • Betafo Commune
    Jason McAvoy collection & photo (Ex. Philadelphia Academy of Natural Sciences No. 21079)
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
          • Mahaiza Commune
    Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 232
          • Tritriva Commune
    Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse.
        • Faratsiho District
    Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 225-226
    "Madagascar", extraLapis English Vol 1, p50
    • Antsiranana Province
      • Sava Region (Northeastern Region)
        • Vohémar District
          • Andravory Pegmatite field
    Pezzotta, F.(1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, p.42 (German version)
    • Mahajanga Province (Majunga)
      • Betsiboka Region
        • Tsaratanàna District
          • Berere Pegmatite Field
    Mücke, A. & Strunz, H. (1978): Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist 63: 941-946
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    Dias, M. Bettencourt and Wilson, W. E., 2000, Mineralogical Record, 31:459-497.
    Norway
     
    • Telemark
      • Drangedal
        • Tørdal
    Larsen, A.O. (1982): Mineralene i Skarsfjell pegmatittbrudd, Tørdal. in Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991, p 101
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasnyi Chikoy
            • Malkhan pegmatite field (Malchan; "Malechansk")
    [MinRec 32:44]
    • Far-Eastern Region
      • Primorskiy Kray
        • Voznesenskii ore District
    Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Yuzhakovo Village
            • Alabashka pegmatite field
    http://webcenter.ru/~minbooks/murz_kaz.html
    Slovakia
     
    • Bratislava Region
      • Pezinok Co.
        • Limbach
    Uher, P., Žitňan, P. & Ozdín, D. (2006) Compositional Variations Of Pegmatite Nb-ta Mineral Assemblage From The Limbach Area, Malé Karpaty Mts., Slovakia. Acta Miner.-Petrograph.,Abstract Series 5, Szeged, p.125
    • Košice Region
      • Rožňava Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Spišská Nová Ves Co.
        • Hnilec
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    South Africa
     
    • Northern Cape Province
      • ZF Mgcawu District
        • Kenhardt
    Minerals of South Africa
    UK
     
    • England
      • Cornwall
        • Mount's Bay District
          • Breage
    No reference listed
    USA
     
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    Karl Estes (1998) Mineral News, 14, #5, 8-10.; Min News (1998) 14:4 pp 1,2,5
    • Colorado
      • Chaffee Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Eagle Co.
        • Fulford District
    Minerals of Colorado (1997) E.B. Eckels
      • Gunnison Co.
        • Quartz Creek Pegmatite District
    Minerals of Colorado (1997) Eckels, E. B.
      • Lake Co.
        • Climax District
          • Climax
    Minerals of Colorado (1997) E.B. Eckels
    • Connecticut
      • Hartford Co.
        • Glastonbury
          • South Glastonbury
    Betts, John. (1999): The Quarries and Minerals of the Dayton Road District, South Glastonbury, Connecticut. Rocks and Minerals. Volume 74, Number 2. pp. 110-121
      • Middlesex Co.
        • East Hampton (Chatham)
    Jarnot (1989) in Rocks & Min.: 64:471.
    • South Dakota
      • Pennington Co.
        • Keystone District
          • Glendale
    R&M 75:3 pp 156-169
          • Keystone
    Rocks & Minerals: 57: 160 &/or 60: 110 & 112.
    Am Min 70:9-10 pp 1044-1049; USGS Prof Paper 297A
    • Wisconsin
      • Marathon Co.
        • Nine Mile pluton
    T.W. Buchholz, A.U. Falster, Wm.B. Simmons (2000) Mineral News, 16, #5.
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