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Tantalite-(Mn)

Big Photo

Alto do Giz pegmatite, Equador, Borborema mineral province, Rio Grande do Norte, Northeast Region, Brazil
© Peter Kohorst

Show Tantalite-(Mn) Photos (82)
Formula:
MnTa
 
2
O
 
6
System:OrthorhombicColour:Pink to nearly ...
Hardness:6
Name:From the manganese content and for the greek mythical tantalus - for difficulty in dissolving.


Tantalite-(Fe)-Tantalite-(Mn) Series.

Formerly known as manganotantalite.

Classification of Tantalite-(Mn)

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/D.18-40
Nickel-Strunz 10th (pending) edition ID:4.DB.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
Dana 8th edition ID:8.3.2.3

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
Hey's CIM Ref.:18.1.36

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
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Type Occurrence of Tantalite-(Mn)

Type Locality:Utö Island, Haninge, Stockholm, Södermanland, Sweden
Year of Discovery:1887

Occurrences of Tantalite-(Mn)

Geological Setting:Accessory mineral in granitic pegmatites.

Physical Properties of Tantalite-(Mn)

Lustre:Vitreous, Sub-Metallic
Diaphaneity (Transparency):Opaque
Colour:Pink to nearly colorless, redish brown to black
Streak:Red, scarlet to black
Hardness (Mohs):6
Hardness (Vickers):VHN100=488 - 681 kg/mm2
Tenacity:Brittle
Cleavage:Distinct/Good
Distinct on {100}
Less distinct {010}
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):6.65 - 8 g/cm3
Density (calculated):8.01 g/cm3

Crystallography of Tantalite-(Mn)

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pbcn {P21/b 2/c 21/n}
Cell Parameters:a = 14.44Å, b = 5.7661(8) Å, c = 5.093Å
Ratio:a:b:c = 2.504 : 1 : 0.883
Unit Cell Volume:V 424.06 ų (Calculated from Unit Cell)
Z:4
Morphology:Short prismatic to tabular
Twinning:On {021} {023}
Pseudohexagonal trillings
Comment:On synthetic material
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Tantalite-(Mn)

Type:Biaxial (+)
RI values: nα = 2.140 nβ = 2.150 nγ = 2.340
Maximum Birefringence:δ = 0.200

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r < v strong
Pleochroism:Strong
Comments:Red, red-brown, orange

Chemical Properties of Tantalite-(Mn)

Formula:
MnTa
 
2
O
 
6
Essential elements:Mn, O, Ta
All elements listed in formula:Mn, O, Ta
Common Impurities:Fe,Nb

Relationship of Tantalite-(Mn) to other Species

Series:Forms a series with Tantalite-(Fe) (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
4.DB.05Argutite
GeO
 
2
4.DB.05Cassiterite
SnO
 
2
4.DB.05Plattnerite
PbO
 
2
4.DB.05Pyrolusite
MnO
 
2
4.DB.05Rutile
TiO
 
2
4.DB.05Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4
4.DB.05Tugarinovite
MoO
 
2
4.DB.05Varlamoffite
(Sn,Fe)(O,OH)
 
2
4.DB.10Byströmite
MgSb
 
2
O
 
6
4.DB.10Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
4.DB.10Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
4.DB.10Ordoñezite
ZnSb
 
2
O
 
6
4.DB.15bAkhtenskite
ε-Mn
4+
 
O
 
2
4.DB.15cNsutite
(Mn
4+
 
,Mn
2+
 
)(O,OH)
 
2
4.DB.15aParamontroseite
VO
 
2
4.DB.15aRamsdellite
Mn
4+
 
O
 
2
4.DB.20Scrutinyite
alpha-PbO
 
2
4.DB.25Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
4.DB.25Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
4.DB.25Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Srilankite
Ti
 
2
ZrO
 
6
4.DB.25Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
4.DB.25Calciosamarskite
(Ca,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
4.DB.25Samarskite-(Yb)
(Yb,Fe
3+
 
)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Písekite-(Y)
4.DB.30Ferberite
FeWO
 
4
4.DB.30Hübnerite
MnWO
 
4
4.DB.30Sanmartinite
(Zn,Fe)WO
 
4
4.DB.30Krasnoselskite
CoWO
 
4
4.DB.30Heftetjernite
ScTaO
 
4
4.DB.30IMA2009-018
MgWO
 
4
4.DB.35Columbite-(Fe)
FeNb
 
2
O
 
6
4.DB.35Tantalite-(Fe)
FeTa
 
2
O
 
6
4.DB.35Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
4.DB.35Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
4.DB.35Qitianlingite
(Fe,Mn)
 
2
(Nb,Ta)
 
2
WO
 
10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)
(Mg,Fe
2+
 
)(Ta,Nb)
 
2
O
 
6
4.DB.40Ferrowodginite
FeSnTa
 
2
O
 
8
4.DB.40Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
4.DB.40Lithiowodginite
LiTa
 
3
O
 
8
4.DB.40Titanowodginite
MnTiTa
 
2
O
 
8
4.DB.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
4.DB.40Ferrotitanowodginite
Fe
2+
 
TiTa
 
2
O
 
8
4.DB.40Wolframowodginite
Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)
 
2
O
 
8
4.DB.45Tivanite
VTiO
 
3
(OH)
4.DB.50Carmichaelite
(Ti,Cr,Fe)[O
 
2-x
(OH)
 
x
]
4.DB.55Alumotantite
AlTaO
 
4
4.DB.60Biehlite
((Sb,As)O)
 
2
[MoO
 
4
]
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)
18.1.37Gerasimovskite
(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
18.1.50Strüverite
(Ti,Ta,Fe)O
 
2
18.1.51 Staringite
(Fe,Mn)
 
x
(Ta,Nb)
 
2x
Sn
 
6-3x
O
 
12

Other Names for Tantalite-(Mn)

Synonyms:
AlvaroliteManganotantaliteMangantantalite
Other Languages:
German:Alvarolit
Manganotantalit
Russian:Мангантанталит
Spanish:Alvarolita
Manganotantalita

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 Tantalite-(Mn)

Reference List:Arzruni (1887), Russ. Ges. Min., Vh.: 23: 181.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 780.

Grice, J. D., Ferguson, R. B., Hawthorne, F. C. (1976): The crystal structures of tantalite, ixiolite and wodginite from Bernic lake, Manitoba. I. Tantalite and ixiolite. Canadian Mineralogist 14, 540-549. [in fact structure of manganotantalite]

American Mineralogist (1988): 73: 666-667.

American Mineralogist (1995): 80: 613-619.

Internet Links for Tantalite-(Mn)

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  • Raman and XRD data at RRUFF project
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    Localities for Tantalite-(Mn)

    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.
    Afghanistan
     
    • Laghman (Lagman; Nuristan) Province
    		Bariand, P. and Poullen, J.F. (1978). Famous mineral localities: The pegmatites of Laghman - Nuristan - Afghanistan. Mineralogical Record. 9: 301-308.
    Bariand, P. and Poullen, J.F. (1978). Famous mineral localities: The pegmatites of Laghman - Nuristan - Afghanistan. Mineralogical Record. 9: 301-308.
    • Nangarhar (Ningarhar) Province
    • Nuristan Province (Nurestan; Nooristan)
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
        • Laouni
    Argentina
     
    • Salta
      • Nevados de Palermo
        • El Quemado District
    		Galliski et al. (2001) Bismutotantalite from northwestern Argentina: description and crystal structure. Can. Min. Vol. 39, pp. 103-110.
    Australia
     
    • South Australia
      • Flinders Ranges
        • North Flinders Ranges
          • Umberatana
    		mentioned references in description
    • Victoria
      • East Gippsland Shire
        • Omeo
          • Mt Wills Mining District
            • Glen Wills
    		Personally collected by Ryan Eagle in 2009
    • Western Australia
    		No reference listed
      • Pilbara Region
    		AmMin 13:457
    Brazil
     
    • Northeast Region
      • Paraíba
        • Borborema mineral province
          • Frei Martinho
            • Quixaba
          • Junco do Seridó
    		Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
          • Picuí
    		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.
      • Rio Grande do Norte
        • Borborema mineral province
          • Equador
    [www.johnbetts-fineminerals.com]; http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
    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.
          • Parelhas
    		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.
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Governador Valadares
    		Min Rec 36:3 pp292-293
    Canada
     
    • Manitoba
      • Bird River Greenstone Belt
      • Lac-du-Bonnet area
        • Bernic Lake
    		Econ Geol (1995) 90:658-675
    American Mineralogist, Volume 94, pages 439–450, 2009
    • Ontario
      • Kenora District
        • Ignace
        • Pickle Lake
    		Taylor, R.P., and Henham, R. (2001): Exploration and Mining Geology 10(1/2), 85-93.
        • Red Lake
        • Separation Rapids (Separation Lake area)
    		Tindle, A.G. & Breaks, F.W. (1998) Oxide minerals of the Separation Rapids rare-element granitic pegmatite group, northwestern Ontario. Canadian Mineralogist, 36, 609-635. Tindle, A.G., Breaks, F.W. and Webb, P.C. (1998) Wodginite-group minerals from the Separation Rapids Rare-Element Granitic Pegmatite Group, northwestern Ontario. Canadian Mineralogist, 36, 637-658. ontariominerals.com
    China
     
    • Fujian Province
      • Nanping Prefecture
        • Zhenghe Co.
    		Yang Zhuming, Song Renkui, Tao Kejie, and Zhang Peishan (2003): Neues Jahrbuch für Mineralogie, Monatshefte, 8, 363-373.
    • 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.
    • Henan Province
      • Sanmenxia Prefecture
        • Lushi Co.
          • Guanpo
    		Ruiling He and Enkui Cao (1985): Geology of Shaanxi 3(2), 39-46.
    • Jiangxi Province
      • Ji'an Prefecture
        • Anfu Co.
          • Yichun complex
    		Xiaolong Huang, Rucheng Wang, Xiaoming Chen, Huan Hu, and Changshi Liu (2002): Canadian Mineralogist 40(4), 1047-1068.
      • Pingxiang Prefecture
        • Anyuan District
    		Scovil, J.A. (2005): Rocks & Minerals 80(1), 12-22.
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Yili Hasake (Ili Kazakh) Autonomous Prefecture
        • Aletai (Altay) Prefecture
          • Fuyun Co.
            • Koktokay (Keketuohai) Pegmatite field
              • Altay Mine
    		Zhang et al. 2004, Min. Mag. Vol 68, pp. 739-756.
          • Qinghe (Qinggil; Chinggil) Co.
    		Ma Zhesheng, Shi Nicheng, and Ye Danian (2005): Science in China, Series D (Earth Sciences), 48(5), 635-646.
    • Yunnan Province
      • Pu'er Prefecture
    		[MinRec 32:487]
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Maršíkov
    		Novák, M.: Maršíkov - Schinderhübel. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 34-37.
    Novák, M.: Maršíkov - Scheibengraben. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 38-41.
      • Vysočina Region
        • Hrotovice
          • Biskupice
    		Čech, F.: O minerálu ze skupiny rutilu z lithného pegmatitu z Biskupic u Hrotovic. Časopis Moravského musea v Brně, Vědy přírodní, 1958, roč. 43, s. 55-58.
        • Velké Meziříčí
    		Novák, M., Staněk, J.: Lepidolitový pegmatit od Dobré Vody u Velkého Meziříčí, západní Morava. Acta Musei Moraviae, Scientiae geologicae, 1999, roč. 84, s. 3 - 44.
        • Žďár nad Sázavou
    		Novák, M., Houzar, S., Pfeiferová, A.: Přehled mineralogie, petrografie a historie klasické lokality lepidolitového pegmatitu v Rožné u Bystřice nad Pernštejnem, západní Morava. Acta Musei Moraviae, Sci. geol., 83:3-48.
    P. Pauliš (2001): Nejzajímavější naleziště Moravy a Slezska. Kuttna, Kutná Hora.
    Egypt
     
    • Red Sea Governorate
      • Eastern Desert
        • Marsa Alam
    		Küster, D. (2009): Ore Geology Reviews 35, 68-86.
    Helba, H., Trumbull, R.B., Morteani, G., Khalil, S.O., and Arslan, A. (1997): Mineralium Deposita 32, 164-179.
    Ethiopia
     
    • Sidamo-Borana Province
      • Kenticha pegmatite field
    		Küster, D. (2009): Ore Geology Reviews 35, 68-86.
    Finland
     
    • Etelä-Suomen Lääni
      • Orivesi
        • Eräjärvi area
    		No reference listed
    Italy
     
    • Tuscany
      • Livorno Province
        • Elba Island
          • Campo nell'Elba
    		Mineralogical Record, 16 (5), 353-363.
    C. Aurisicchio, C. De Vito, V. Ferrini, P. Orlandi (2002) - Nb and Ta oxide minerals in the Fonte Del Prete granitic-pegmatite dike, island of Elba, Italy - Canad. Min., 40: 799-814.
    Ivory Coast (Côte d'Ivoire)
     
    • Haut-Sassandra region
      • Issia department
        • Issia
    		Allou, B. A.(2006), Expl. & Mining geology 14, 1-4, 61-77
    Allou, B.A. (2006), Expl & Mining Geology 14, 1-4, 61-77
    Japan
     
    • Honshu Island
      • Kanto Region
        • Ibaraki Prefecture
          • Hitachiohta City
    		Sakurai et al (1977) Ganseki-Koubutsu-Koshogaku Zasshi, 72, 13-27
    • Kyushu Island
      • Fukuoka Prefecture
    		www.petrovrareminerals.com/articles02.html
    Kazakhstan
     
    • Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast')
      • Kalba Range
        • Irtysh River
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pavel M. Kartashov data
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Betafo District
          • Andrembesoa Commune
            • FKT Antsentsindrano
    		Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165
        • Sahatany Pegmatite Field (Mt Bity (Ibity) area)
          • Sahatany Valley
    		Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Bergverksmuseets skrifter 25, 5-18 (in norwegian)
    • Fianarantsoa Province
      • Matsiatra Region
        • Ampandramaika-Malakialina Pegmatite Field
          • Ikalamavony District
            • Fitampito Commune
              • Andanoa
    		J.Behier (1963): Carte mineralogique de Madagascar. Archive Serv. Geol.Mad. A 1871
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Mongolia
     
    • Dornogovi Aimag
    		Pavel M. Kartashov data
    Mozambique
    Martins da Pedra.
    Martins da Pedra.
    • Zambezia Province
      • Alto Ligonha District
    		[www.johnbetts-fineminerals.com]; Mineralogical Magazine 1963 33 : 458-466
    Martins da Pedra
    Mineralogical Magazine 1963 33 : 458-466
    Johan Kjellman collection
    J.C. Goni, C. Guillemin : "Etude de la paragenèse de quelques minéraux des pegmatites d'Alto Ligonha (Mozambique)", Bull. Soc. Franç. Minér. Crist. , 1964, 553-556
    Namibia
     
    • Karas Region
      • Tantalite Valley
    		Baldwin, J. R. (1989): Replacement phenomena in tantalum minerals from rare-metal pegmatites in South Africa and Namibia. Mineral. Mag. 53, 571-581. [http://www.minersoc.org/pages/Archive-MM/Volume_53/53-373-571.pdf]
    Norway
     
    • Aust-Agder
      • Evje og Hornnes
        • Lauvland
    		Frigstad (1968, p. 136); Neumann (1985, p. 78).
    Frigstad (1968, p. 136); Neumann (1985, p. 78).
    Neumann (1985, p. 78).
      • Iveland
        • Birkeland
    		Frigstad, O.F. (1968): En undersøkelse av cleavelandittsonerte pegmatittganger i Iveland-Evje, Nedre Setesdal. Hovedfagsoppgave (Thesis), University of Oslo p. 136 ; Neumann, H. (1985): Norges Mineraler. Norges geologiske undersøkelse. Skrifter 68, p. 78
    Frigstad, O.F. (1968): En undersøkelse av cleavelandittsonerte pegmatittganger i Iveland-Evje, Nedre Setesdal. Hovedfagsoppgave (Thesis), University of Oslo p. 136 , p. 136; Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 78
        • Frikstad (Frigstad)
    		Frigstad (1968, p. 136); Neumann (1985, p. 78).
        • Katterås
    		Frigstad (1968, p. 136); Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 78
    Bjørlykke (1934, 147 and 1934b, pp. 271.272); Frigstad (1968, p. 136); Neumann (1985, p. 78).
        • Mølland
    		Frigstad (1968, p. 136); Neumann (1985, p. 78).
        • Rossås (Rosås)
    		Frigstad (1968, p. 136); Neumann (1985, p. 78).
        • Skripeland
    		Bjørlykke (1934, p. 147 and 1934b, pp. 271-272); Frigstad (1968, p. 136); Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 78).
    Frigstad (1968, p. 136); Neumann (1985, p. 78).
    • Nordland
      • Sørfold
    		Ellingsen, H.V., Haugen, A., Raade, G., Eldjarn, K. & Berg, H.-J., (1995): Sjeldne mineraler i en amazonittpegmatitt ved Tennvatn i Nordland. Norsk Bergverksmuseums Skriftserie 9, 35-37
      • Tysfjord
        • Drag
    		G. Raade (1972, pers. com.); Neumann 81985, p. 78).
    • Østfold
      • Råde
    		Neumann (1985, p. 78).;Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008):Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum, skrift 38, 33-36.
    • Vest-Agder
      • Kristiansand
    		Frigstad (1970, pers. com.); Neumann (1985, p. 78).
    Pakistan
     
    • Northern Areas
      • Baltistan
        • Skardu District
          • Braldu Valley
    		Blauwet, D., et al, 2004, Pakistan: Minerals, Mountains and Majesty. Lapis International, 96p.
          • Haramosh Mts.
    		Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
          • Shigar Valley
    		Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut); Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Ząbkowice District
        • Ząbkowice (Frankenstein)
          • Szklary (Gläsendorf)
    		Geologia Sudetica, 33 (1): 23-31.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Voron'i Tundry
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Rezh District
            • Lipovka pegmatite field
    		Lapis 28(10), 60 (2003)
          • Yuzhakovo Village
            • Alabashka pegmatite field
    		http://webcenter.ru/~minbooks/murz_kaz.html
    Slovakia
     
    • Bratislava Region
      • Malé Karpaty Mts
        • Bratislava
    		Chudík, P. & Uher, P. (2009): Mitt. Österr. Mineral. Ges. 155, 40. (Abs.)
    Uher P., Žitňan P., Ozdáín 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
    Uher P., Žitňan P., Ozdín D., 2007: Pegmatitic Nb-Ta oxide minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional variations and evolutionary trend. Journal of Geosciences, 52, 1-2, 133-141.
    • 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
    • Trnava Region
      • Southwestern Považský Inovec Mts
    		Uher, P., Broska, I., 1989: Muskovitický pegmatit s obsahom minerálov vzácnych prvkov při Moravanoch n.V. (Považský Inovec). Min.Slovaca, 21,2,163 – 174
    Sweden
     
    • Södermanland
      • Stockholm
        • Haninge
    		Arzruni (1887), Russ. Ges. Min., Vh.: 23: 181.
    • Västerbotten
      • Skellefteå
    		Quensel 1941, GFF 63, 176-179; Cerny et al. (2004) Can. Min. 89, 505-518
    Uganda
     
    UK
     
    • England
      • Devon
        • Okehampton area (Northern Dartmoor)
    		http://www.mineralman.f9.co.uk/quarries/meldon.htm
    USA
     
    • California
      • San Diego Co.
        • Pala District
          • Hiriart Mountain (Heriart; Heriot; Hiriat Hill)
    		Dana 6:A3:22.
    Jahns, R. A. and Wright, L. A., 1951, Gem and Lithium Bearing Pegmatites of the Pala District, San Diego County, California. California Division of Mines Special Report 7A, 72p.
    Jahns, R. A., and Wright, L. A. 1951. Gem and Lithium-Bearing Pegmatites of the Pala District, San Diego County, California. California Division of Mines and Geology Special Report 7A, p. 31.
    Fisher, J. 2002. Gem and rare-element pegmatites of southern California. Mineralogical Record, Volume 33, Number 5: pages 376-378, photographs.
    • Colorado
      • Jefferson Co.
        • Clear Creek pegmatite Province
    		Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).
    • Connecticut
      • Middlesex Co.
        • East Hampton
        • Portland
          • Collins Hill
    		Schooner, R., 1955, 99 Minerals from 1 Connecticut Hill, Rocks and Minerals, v. 30, p.351-358.
    Self collected by Kevin Czaja
    • Maine
      • Androscoggin Co.
        • Auburn
          • Mt. Apatite District
    		No reference listed
    Thompson, W, Joyner, D., Woodman, R., and King, V., 1998. Maine Mineral Localities, 3rd ed.; King and Foord, 1994, Mineralogy of Maine
    No reference listed
    Thompson, W, Joyner, D., Woodman, R., and King, V., 1998. Maine Mineral Localities, 3rd ed.; King and Foord, 1994, Mineralogy of Maine
        • Poland
    		No reference listed
      • Oxford Co.
        • Buckfield
    		King, V. and Foord, E., 1994, Mineralogy of Maine.
        • Greenwood
    		No reference listed
          • Uncle Tom Mt
    		Falster, A.U., Simmons, W.B., Sprague, R. (2006) 33rd Rochester Mineralogical Symposium, abstracts, 14-15.
    Van King
        • Newry
    		King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
    Van King
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2.
    King, V. and Foord, E., 1994, Mineralogy of Maine, v. 1; King, V, 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, Oxford County, Maine, Mineral News, v. 22 (6), p. 1-3.
        • Rumford
    		No reference listed
      • Sagadahoc Co.
        • Georgetown
    		Collection of Steve Stuart
        • Topsham
    		No reference listed
    • Nevada
      • Clark Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Hampshire
      • Cheshire Co.
    		Rocks & Min 80:247
    • New Mexico
      • Taos Co.
        • Picuris District
    		Minerals of New Mexico 3rd ed.; Jahns, R. H. and Ewing, R. C. (1977): The Harding mine, Taos County, New Mexico. Mineralogical Record, 8 (2): 115-126.
    • Virginia
      • Amelia Co.
        • Amelia (Amelia Court House)
    		Minerals of Virginia, 1990 by R. V. Dietrich
    AmMin 3:27-28 (1918)
        • Winterham
    		USGS Bulletin 248B (1952)
      • Powhatan Co.
        • Flat Rock
    		Minerals of Virginia, 1990 by R. V. Dietrich
    • Wisconsin
      • Florence Co.
        • Fern
    		The Mineralogy and Geochemistry of the Animikie Red Ace Pegmatite, Florence County, Wisconsin. Alexander U. Falster, Wm. B. Simmons, and Karen L. Webber, Recent Research Developments in Mineralogy, 1(1996); Rocks and Minerals 63:455
      • Jefferson Co.
        • Waterloo
    		Buchholz, T.W., Falster, A.U., and Simmons, WmB. (2007) 34th Rochester Mineralogical Symposium, Contributed Papers.
      • Marathon Co.
        • Wausau pluton
          • "Rotten granite" quarries
    		www.uwrf.edu/~wc01
    Thomas Buchholz, 1999 "Minerals of a Wausau Pegmatite, Marathon County, Wisconsin", Rocks and Minerals, vol .74 #4, p. 254 - 258.
    Zimbabwe
     
    • Mashonaland
      • Mtoko
    		Hornung. G. PhD thesis. Pegmatites of th N. Mtoko Region. University of Leeds, Research Institute of African Geology. !961
    Mineralogical Magazine 1963 33 : 458-466
    • Masvingo District
      • Bikita
    		Mineralogical Magazine 1946 27 : 157-165
    J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997); Mineralogical Magazine 1946 27 : 157-165
    Mineral and/or Locality
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