IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Tantalite-(Mg)

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About Tantalite-(Mg)Hide

Formula:
(Mg,Fe2+)(Ta,Nb)2O6
Colour:
Black
Lustre:
Metallic
Hardness:
Specific Gravity:
6.73
Crystal System:
Orthorhombic
Member of:
Name:
Named as the magnesium dominant member of the tantalite series.
The Mg-dominant analogue of tantalite-(Fe) and tantalite-(Mn).



Classification of Tantalite-(Mg)Hide

Approved
Notes:
Renamed by the IMA
Approval Year:
2003
First Published:
2003
Approval History:
Approved by IMA in 2003 as a new species with the name magnesiotantalite (IMA 2002-018).
2007: Renamed by IMA as tantalite-(Mg), proposal IMA 07-C ( Burke 2008).
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

Physical Properties of Tantalite-(Mg)Hide

Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Brownish red
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Density:
6.73 g/cm3 (Measured)    

Chemical Properties of Tantalite-(Mg)Hide

Formula:
(Mg,Fe2+)(Ta,Nb)2O6
IMA Formula:
MgTa2O6

Crystallography of Tantalite-(Mg)Hide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 14.33 Å, b = 5.735 Å, c = 5.058 Å
Ratio:
a:b:c = 2.499 : 1 : 0.882
Unit Cell V:
415.68 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.67 (60)
2.96 (100)
1.73 (70)
1.46 (90)

Occurrences of Tantalite-(Mg)Hide

Paragenetic Mode(s):

Type Occurrence of Tantalite-(Mg)Hide

General Appearance of Type Material:
Alteration zones to a maximum thickness of about 0.5 mm formed between manganotantalite crystals and the host rock
Chemical Analysis of Type Material:
MgO5.27 %
FeO6.71 %
MnO0.82 %
TiiO20.38 %
Nb2OS24.19 %
Ta2O561.86 %
Total:99.23 %
Geological Setting of Type Material:
Andesite-calcite lenses in a zoned, metasomatically altered pegmatite vein hosted by serpentinite
Associated Minerals at Type Locality:
Reference:
Pekov, I. V., Yakubovich, O. V., Shcherbachev, D. K., Kononkova, N. N. (2003) Magnesiotantalite (Mg,Fe)(Ta,Nb)2O6, the new columbite-tantalite group mineral from desilicated granite pegmatites of Lipovka (the Central Urals) and its genesis. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 132 (2): 49-60

Synonyms of Tantalite-(Mg)Hide

Other Language Names for Tantalite-(Mg)Hide

Simplified Chinese:镁铌钽矿
Traditional Chinese:鎂鈮鉭礦

Relationship of Tantalite-(Mg) to other SpeciesHide

Member of:
Other Members of this group:
Columbite-(Fe)FeNb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.
Tantalite-(Fe)FeTa2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Tantalite-(Mn)MnTa2O6Orth. mmm (2/m 2/m 2/m) : Pbcn

Common AssociatesHide

Associated Minerals Based on Photo Data:
Tantalite-(Mn)2 photos of Tantalite-(Mg) associated with Tantalite-(Mn) on mindat.org.
Microlite Group2 photos of Tantalite-(Mg) associated with Microlite Group on mindat.org.
Calcite2 photos of Tantalite-(Mg) associated with Calcite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.DB.05ArgutiteGeO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05CassiteriteSnO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05PlattneritePbO2Tet. 4/mmm (4/m 2/m 2/m)
4.DB.05PyrolusiteMn4+O2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05RutileTiO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05TripuhyiteFe3+Sb5+O4Tet.
4.DB.05TugarinoviteMoO2Mon.
4.DB.05Varlamoffite(Sn,Fe)(O,OH)2
4.DB.10ByströmiteMgSb2O6Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.DB.10Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10Tapiolite-(Mn)(Mn,Fe)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10OrdoñeziteZnSb2O6Tet.
4.DB.15bAkhtenskiteε-Mn4+O2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.DB.15cNsutite(Mn4+,Mn2+)(O,OH)2Hex.
4.DB.15aParamontroseiteV4+O2Orth.
4.DB.15aRamsdelliteMn4+O2Orth. mmm (2/m 2/m 2/m)
4.DB.20Scrutinyiteα-PbO2Orth.
4.DB.25IshikawaiteU4+Fe2+Nb2O8Mon.
4.DB.25Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8Orth.
4.DB.25Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.25SrilankiteZrTi2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.25Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
4.DB.25Calciosamarskite(Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8Mon.
4.DB.25Samarskite-(Yb)(Yb,Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8Mon. 2/m : P2/b
4.DB.30FerberiteFeWO4Mon. 2/m : P2/b
4.DB.30HübneriteMnWO4Mon. 2/m : P2/b
4.DB.30Sanmartinite(Zn,Fe)WO4Mon. 2/m : P21/b
4.DB.30KrasnoselskiteCoWO4Mon.
4.DB.30HeftetjerniteScTaO4Mon. 2/m
4.DB.30HuanzalaiteMgWO4Mon. 2/m : P2/b
4.DB.35Columbite-(Fe)FeNb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Tantalite-(Fe)FeTa2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Tantalite-(Mn)MnTa2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
4.DB.35Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.
4.DB.35Magnocolumbite(Mg,Fe,Mn)(Nb,Ta)2O6
4.DB.40FerrowodginiteFe2+Sn4+Ta2O8Mon.
4.DB.40LithiotantiteLiTa3O8Mon.
4.DB.40LithiowodginiteLiTa3O8Mon.
4.DB.40TitanowodginiteMn2+TiTa2O8Mon.
4.DB.40WodginiteMn2+Sn4+Ta2O8Mon.
4.DB.40FerrotitanowodginiteFe2+TiTa2O8Mon.
4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8
4.DB.45TivaniteV3+TiO3(OH)Mon.
4.DB.50Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]Mon. 2/m : P21/b
4.DB.55AlumotantiteAlTaO4Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.60Biehlite((Sb,As)O)2[MoO4]Mon.

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 Tantalite-(Mg)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I. V., Yakubovich, O. V., Shcherbachev, D. K., Kononkova, N. N. (2003) Magnesiotantalite (Mg,Fe)(Ta,Nb)2O6, the new columbite-tantalite group mineral from desilicated granite pegmatites of Lipovka (the Central Urals) and its genesis. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 132 (2): 49-60 (in Russian).
Burke, E. A. J. (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks. The Mineralogical Record 39: 131-135

Internet Links for Tantalite-(Mg)Hide

Localities for Tantalite-(Mg)Hide

ⓘ - 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.
Russia (TL)
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Rezh District
          • Lipovka pegmatite field
Pekov, I. V., Yakubovich, O. V., Shcherbachev, D. K., Kononkova, N. N. (2003) Magnesiotantalite (Mg,Fe)(Ta,Nb)2O6, the new columbite-tantalite group mineral from desilicated granite pegmatites of Lipovka (the Central Urals) and its genesis. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 132 (2): 49-60; Igor.V. Pekov, Lyudmila R. Memetova (2008) Minerals of the Lipovka Granite Pegmatites, Central Urals, Russia. Mineralogical Almanac 13:6-45
Sri Lanka
 
  • Sabaragamuwa Province
    • Ratnapura District
      • Ratnapura
Ceylon Aluvial Mine, (Book, Co. 2002)
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 24, 2018 06:58:33 Page generated: October 15, 2018 22:58:31
Go to top of page