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Strüverite

Big Photo

Etta Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
© Knut Eldjarn

Show Strüverite Photos (10)
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

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
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,Pb,Li)
 
3
(Ta,Nb,Al)
 
11
(O,OH)
 
30
18.1.8Kalipyrochlore
(K,Sr)
 
2-x
Nb
 
2
O
 
6
(O,OH)·nH
 
2
O
18.1.9Calciotantite
CaTa
 
4
O
 
11
18.1.10Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
18.1.11Microlite
(Ca,Na)
 
2
Ta
 
2
O
 
6
(O,OH,F)
18.1.12Belyankinite
Ca
 
1-2
(Ti,Zr,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
Ba(Ta,Nb)
 
2
(O,OH)
 
7
18.1.16Parabariomicrolite
BaTa
 
4
O
 
10
(OH)
 
2
·2H
 
2
O
18.1.17Bariopyrochlore
(Ba,Sr)
 
2-x
(Nb,Ti)
 
2
(O,OH)
 
7
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
SnTa
 
2
O
 
6
18.1.22Stannomicrolite
(Sn,Fe,Mn)
 
2
(Ta,Nb,Sn)
 
2
(O,OH)
 
7
18.1.23Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
18.1.24Changbaiite
PbNb
 
2
O
 
6
18.1.25Plumbopyrochlore
(Pb,Ca,Y,U)
 
2-x
(Nb,Ta,Ti)
 
2
O
 
6
(OH,O)
18.1.26Plumbomicrolite
(Pb,Ca,U)
 
2-x
(Ta,Nb,Sn)
 
2
O
 
6
(O,[])
18.1.27Stibiocolumbite
Sb(Nb,Ta)O
 
4
18.1.28Stibiotantalite
Sb(Ta,Nb)O
 
4
18.1.29Natrobistantite
(Na,Cs)Bi(Ta,Nb,Sb)
 
4
O
 
12
18.1.30Cesplumtantite
(Cs,Na)
 
2
(Pb,Sb
3+
 
)
 
3
Ta
 
8
O
 
24
18.1.31Stibiomicrolite
(Sb,Ca,Na)
 
2
(Ta,Nb)
 
2
O
 
7
18.1.32Cesstibtantite
(Cs,Na)SbTa
 
4
O
 
12
18.1.33 Stibobetafite
(Ca,Sb)
 
2
(Ti,Nb,Ta)
 
2
(O,OH)
 
7
18.1.34Bismutotantalite
Bi(Ta,Nb)O
 
4
18.1.35Bismutomicrolite
(Bi,Ca)(Ta,Nb)
 
2
O
 
6
(OH)
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
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

    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.
    Australia
     
    • Western Australia
      • Greenbushes Tinfield
    		Econ Geol (1995) 90:616-635
    Brazil
     
    • Northeast Region
      • 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.
      • 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
        • Separation Rapids (Separation Lake area)
    		ontariominerals.com
      • Renfrew Co.
        • Lyndoch Township
          • Quadeville
    		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.
    Finland
     
    • Etelä-Suomen Lääni
      • Tammela
    		H-J Wilke (1976) Mineralfundstellen, Band 4, Skandinavien
    France
     
    • Provence-Alpes-Côte d'Azur
      • Var
        • 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
     
    • Qaraghandy Oblysy (Karaganda Oblast')
    		 World of Stones, 1995, Vol. 8, p. 24, A.A. Eseev, Kazakhstan and Middle East - A brief moneralogical guide.
    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 (Betafo - Antsirabé region)
        • Antsirabé 2 District
          • Sahanivotry Commune
    		Moore, T. (2008): Whats New in Minerals. Dallas Show 2008. Mineralogical Record. 39, p 332
        • Betafo District
    		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
        • Faratsiho District
    		Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. p 225-226
        • Sahatany Pegmatite Field (Mt Bity (Ibity) area)
    		Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse.
    • Antsiranana Province
      • Sava (Northeastern) Region
        • Vohémar District
          • Andravory Pegmatite field
    		F.Pezzotta (1999): Madagaskar.Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17 (in german) p.42
    • Mahajanga (Majunga) Province
      • Betsiboka Region
        • Tsaratanàna District
          • Berere Pegmatite Field
    		Mucke, A, and Strunz, H., Petscheckite and Liandratite, two new minerals from Madagascar, Am Min 63:941-946.
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		No reference listed
    Norway
     
    • Telemark
      • Drangedal
        • Tørdal
    		A.O. Larsen (1982, pers. com.); Neumann (1985, p. 73).
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasnyi Chikoy
            • Malkhan pegmatite field (Malchan)
    		[MinRec 32:44]
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Yuzhakovo Village
            • Alabashka pegmatite field
    		http://webcenter.ru/~minbooks/murz_kaz.html
    Slovakia
     
    • 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
        • 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
      • Namaqualand
        • Kenhardt District
    		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.
    • 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 District
          • Ohio City
    		Minerals of Colorado (1997) Eckels, E. B.
      • Lake Co.
        • Climax District
          • Climax
    		Minerals of Colorado (1997) E.B. Eckels
    • Connecticut
      • Hartford Co.
        • Glastonbury
    		Rocks&Min 74:110-121
      • Middlesex Co.
        • East Hampton
    		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
    • Wisconsin
      • Marathon Co.
        • Nine Mile pluton
    		T.W. Buchholz, A.U. Falster, Wm.B. Simmons (2000) Mineral News, 16, #5.
    Mineral and/or Locality
    Google
     
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