Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Tantalaeschynite-(Y)

Big Photo

Paszowice (Pokutnik; Galgenberg; Poischwitz), Jawor District, Strzegom-Sobótka Massif, Lower Silesia (Dolnośląskie), Poland
© E. Szełęg

Show Tantalaeschynite-(Y) Photos (2)
Formula:
(Y,Ce,Ca)(Ta,Ti,Nb)
 
2
O
 
6
System:OrthorhombicColour:brownish black, black
Hardness:5½ - 6
Name:Named as the tantalian end-member of a series with aeschynite-(Y).


Aeschynite Group

Classification of Tantalaeschynite-(Y)

IMA status:Approved
Strunz 8th edition ID:4/D.21-80
Nickel-Strunz 10th (pending) edition ID:4.DF.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
F : With large (+- medium-sized) cations; dimers and trimers of edgesharing octahedra
Dana 8th edition ID:8.3.6.4

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
Hey's CIM Ref.:18.2.18

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U
mindat.org URL:http://www.mindat.org/min-3881.html
Please feel free to link to this page.

Type Occurrence of Tantalaeschynite-(Y)

Type Locality:Raposa Pegmatite, São José do Sabugi, Paraíba, Northeast Region, Brazil

Physical Properties of Tantalaeschynite-(Y)

Lustre:Resinous
Colour:brownish black, black
Streak:yellowish brown
Hardness (Mohs):5½ - 6
Cleavage:None Observed

Crystallography of Tantalaeschynite-(Y)

Crystal System:Orthorhombic

Chemical Properties of Tantalaeschynite-(Y)

Formula:
(Y,Ce,Ca)(Ta,Ti,Nb)
 
2
O
 
6
Essential elements:O, Ta, Y
All elements listed in formula:Ca, Ce, Nb, O, Ta, Ti, Y

Relationship of Tantalaeschynite-(Y) to other Species

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

- +
4.DF.05Aeschynite-(Ce)
(Ce,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Aeschynite-(Nd)
(Nd,Ce,Ca)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Aeschynite-(Y)
(Y,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Nioboaeschynite-(Ce)
(Ce,Ca,Th)(Nb,Ti)
 
2
(O,OH)
 
6
4.DF.05Nioboaeschynite-(Nd)
(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)
 
2
(O,OH)
 
6
4.DF.05Nioboaeschynite-(Y)
(Y,Ca,Ce,Nd,Th)(Nb,Ti,Ta)
 
2
(O,OH)
 
6
4.DF.05Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
4.DF.05Vigezzite
(Ca,Ce)(Nb,Ti)
 
2
O
 
6
4.DF.10Changbaiite
PbNb
 
2
O
 
6
4.DF.15Murataite-(Y)
(Y,Na)
 
6
Zn(Zn,Fe
3+
 
)
 
4
(Ti,Nb,Na)
 
12
O
 
29
(O,F,OH)
 
10
F
 
4
Related Minerals - Hey's Index Grouping:

- +
18.2.1Fergusonite-(Y)
YNbO
 
4
18.2.2β-Fergusonite-(Y)
YNbO
 
4
18.2.3Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
18.2.4β-Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
18.2.5Fergusonite-(Nd)
(Nd,Ce)(Nb,Ti)O
 
4
18.2.6β-Fergusonite-(Nd)
(Nd,Ce)NbO
 
4
18.2.7Formanite-(Y)
YTaO
 
4
18.2.8Pyrochlore
(Ca,Na)
 
2
Nb
 
2
O
 
6
(OH,F)
18.2.9Ceriopyrochlore-(Ce)
(Ce,Ca,Y)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
18.2.10Strontiopyrochlore
(Sr,Ce,Ca)
 
2-x
(Nb,Fe)
 
2
(O,OH)
 
7
18.2.11Loparite-(Ce)
(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
 
3
18.2.12Fersmite
(Ca,Ce,Na)(Nb,Ta,Ti)
 
2
(O,OH,F)
 
6
18.2.13Aeschynite-(Ce)
(Ce,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.14Aeschynite-(Nd)
(Nd,Ce,Ca)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.15Aeschynite-(Y)
(Y,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.16Nioboaeschynite-(Ce)
(Ce,Ca,Th)(Nb,Ti)
 
2
(O,OH)
 
6
18.2.17Nioboaeschynite-(Nd)
(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)
 
2
(O,OH)
 
6
18.2.19Vigezzite
(Ca,Ce)(Nb,Ti)
 
2
O
 
6
18.2.20Murataite-(Y)
(Y,Na)
 
6
Zn(Zn,Fe
3+
 
)
 
4
(Ti,Nb,Na)
 
12
O
 
29
(O,F,OH)
 
10
F
 
4

Other Names for Tantalaeschynite-(Y)

Other Languages:
German:Tantalaeschynit-(Y)

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 Tantalaeschynite-(Y)

Reference List:Mineralogical Magazine (1974): 39: 571-576.

American Mineralogist (1974): 59: 1331.

Internet Links for Tantalaeschynite-(Y)

Search Engines:
  • Look for Tantalaeschynite-(Y) on Google
  • Look for Tantalaeschynite-(Y) images on Google
    • External Links:
  • Look for Tantalaeschynite-(Y) on Webmineral
  • Look for Tantalaeschynite-(Y) on Athena Mineralogy
  • Look for Tantalaeschynite-(Y) on Wikipedia
  • Look for Tantalaeschynite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Tantalaeschynite-(Y) in the Natural History Museum (London) online catalogue
  • Tantalaeschynite-(Y) details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy from David K Joyce minerals
  • Edwards Minerals - Fine Specimens
  • Search for - Tantalaeschynite-(Y) - on e-Rocks Mineral Sales & Auctions
  • SpiriferMinerals.com - high quality specimens
  • Buy Fine Minerals from mineralsweb.com
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wilensky Fine Minerals
  • rare and unusual minerals mainly crystallized
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • The Arkenstone - Fine Minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • High-end worldwide specimens & outstanding customer service
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Tantalaeschynite-(Y)

    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.
    Brazil
     
    • Northeast Region
      • Paraíba
        • São José do Sabugi
    		Rocks&Min.(Jan.2000)
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Strzegom-Sobótka Massif
        • Jawor District
    		SZEŁĘG E., CIURLA A., 2004: Preliminary data on Nb-Ta oxides in pegmatites
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 15th Nov 2009 12:37:19