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Fluornatromicrolite

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Big Photo

Quixaba pegmatite, Quixaba, Frei Martinho, Borborema mineral province, Paraíba, Brazil
© Bruno Gioia

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Formula:
(Na,Ca,Bi)
 
2
Ta
 
2
O
 
6
F
System:IsometricLustre:Adamantine
Member of:Microlite Group > Pyrochlore Supergroup


Not published yet; publication delayed because of discussions on a new nomenclature scheme for its group (see Elements October 2007, p. 360).

Classification of Fluornatromicrolite

IMA status:Approved 1998
Explanation of status:Awaiting publication
Nickel-Strunz 10th (pending) edition ID:4.DH.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
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Type Occurrence of Fluornatromicrolite

Type Locality:Quixaba pegmatite, Quixaba, Frei Martinho, Borborema mineral province, Paraíba, Brazil

Physical Properties of Fluornatromicrolite

Lustre:Adamantine

Crystallography of Fluornatromicrolite

Crystal System:Isometric

Optical Data of Fluornatromicrolite

Type:Isotropic

Chemical Properties of Fluornatromicrolite

Formula:
(Na,Ca,Bi)
 
2
Ta
 
2
O
 
6
F
Essential elements:F, Na, O, Ta
All elements listed in formula:Bi, Ca, F, Na, O, Ta

Relationship of Fluornatromicrolite to other Species

Member of:Microlite Group > Pyrochlore Supergroup
Other Members of Group:

- +
Fluorcalciomicrolite
(Ca,Na)
 
2
Ta
 
2
O
 
6
F
Hydrokenomicrolite
(◻,H
 
2
O)
 
2
Ta
 
2
(O,OH)
 
6
(H
 
2
O)
Hydromicrolite
(H
 
2
O,◻)
 
2
Ta
 
2
(O,OH)
 
6
(H
 
2
O)
Hydroxykenomicrolite
(◻,Na,Sb
3+
 
)
 
2
Ta
 
2
O
 
6
(OH)
Kenoplumbomicrolite
(Pb,◻)
 
2
Ta
 
2
O
 
6
(◻,O,OH)
Oxycalciomicrolite
Ca
 
2
Ta
 
2
O
 
6
O
Oxystannomicrolite
Sn
 
2
Ta
 
2
O
 
6
O
Oxystibiomicrolite
(Sb
3+
 
,Ca)
 
2
Ta
 
2
O
 
6
O
Related Minerals - Nickel-Strunz Grouping):

- +
4.DH.05Brannerite
(U
4+
 
,REE,Th,Ca)(Ti,Fe
3+
 
,Nb)
 
2
(O,OH)
 
6
4.DH.05Orthobrannerite
U
4+
 
U
6+
 
Ti
 
4
O
 
12
(OH)
 
2
4.DH.05Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
4.DH.10Kassite
CaTi
 
2
O
 
4
(OH)
 
2
4.DH.10Lucasite-(Ce)
CeTi
 
2
(O,OH)
 
6
4.DH.15Bariomicrolite (of Hogarth 1977)
4.DH.15Bariopyrochlore (of Hogarth 1977)
4.DH.15Betafite (of Hogarth 1977)
4.DH.15Bismutomicrolite (of Hogarth 1977)
4.DH.15Calciobetafite (of Mazzi & Munno)
4.DH.15Ceriopyrochlore (of Hogarth 1977)
4.DH.15Cesstibtantite
4.DH.15Jixianite
Pb(W,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DH.15Hydropyrochlore
(H
 
2
O,□)
 
2
Nb
 
2
(O,OH)
 
6
(H
 
2
O)
4.DH.15Natrobistantite
4.DH.15Plumbopyrochlore (of Skorobogatova et al)
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Plumbobetafite (of Hogarth 1977)
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)
4.DH.15Stannomicrolite (of Hogarth 1977)
4.DH.15Stibiobetafite (of Černý et al)
4.DH.15Uranpyrochlore
(U,Ca,Ce)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
4.DH.15Yttrobetafite (of Hogarth 1977)
4.DH.15Yttropyrochlore (of Hogarth 1977)
4.DH.15Bismutopyrochlore (of Chukanov et al)
4.DH.15Hydrokenoelsmoreite
◻
 
2
W
 
2
O
 
6
(H
 
2
O)
4.DH.20Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
4.DH.20Oxyplumboroméite
Pb
 
2
Sb
 
2
O
 
6
O
4.DH.20Monimolite
4.DH.20Cuproroméite
Cu
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Stetefeldtite
Ag
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Stibiconite
4.DH.25Rosiaite
PbSb
5+
2
O
 
6
4.DH.30Zirconolite
CaZrTi
 
2
O
 
7
4.DH.35Liandratite
U(Nb,Ta)
 
2
O
 
8
4.DH.35Petscheckite
UFe(Nb,Ta)
 
2
O
 
8
4.DH.40Ingersonite
Ca
 
3
MnSb
 
4
O
 
14
4.DH.45Pittongite
Na
 
0.22
(W,Fe
3+
 
)(O,OH)
 
3
 · 0.44H
 
2
O

Other Names for Fluornatromicrolite

Synonyms:
IMA1998-018
Other Languages:
German:Fluornatromikrolith

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.

Internet Links for Fluornatromicrolite

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    • Localities for Fluornatromicrolite

    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.
    Hide Locality List
    (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
     
    • Konar Province (Kunar Province; Konarh Province; Konarha Province; Nuristan)
      • Chapa Dara District
    		Rob Lavinsky photo
    • Nuristan Province (Nurestan Province; Nooristan Province; Nuristan)
      • Kamdesh District
    		Herb Obodda
    Brazil
     
    • Paraíba
      • Borborema mineral province
        • Frei Martinho
          • Quixaba
    		Pavel M. Kartashov data
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		Mineralogical Record (2001) 32:252
    Pakistan
     
    • Gilgit-Baltistan (Northern Areas)
      • Baltistan
        • Skardu District
    		Pavel M. Kartashov analytical data
    Russia
     
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Yuzhakovo Village
            • Alabashka pegmatite field
    		P.M. Kartashov data
    USA
     
    • Maine
      • Oxford Co.
        • Buckfield
    		King, V., and Foord, E., 2000, Mineralogy of Maine
    Mineral and/or Locality
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