Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch 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 ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Zimbabweite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Na,K)2PbAs4(Ta,Nb,Ti)4O18
Colour:
Yellow, yellow-brown
Lustre:
Adamantine
Hardness:
5 - 5½
Crystal System:
Orthorhombic
Name:
Named after its discovery locality, St. Ann's Mine, Karoi District, south of Miami, Zimbabwe.
An arsenite-tantalate.


Hide all sections | Show all sections

Classification of ZimbabweiteHide

Approved
Approval Year:
1984
4.JA.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
8.7.10.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
7 : Miscellaneous
23.11

23 : Arsenites

Pronounciation of ZimbabweiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of ZimbabweiteHide

Adamantine
Colour:
Yellow, yellow-brown
Hardness:
5 - 5½ on Mohs scale

Optical Data of ZimbabweiteHide

Type:
Biaxial (+)
RI values:
nα = 2.100
2V:
Measured: 80°
Max Birefringence:
δ = 2.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v extreme

Chemical Properties of ZimbabweiteHide

Formula:
(Na,K)2PbAs4(Ta,Nb,Ti)4O18
IMA Formula:
Na(Pb,Na,K)2(Ta,Nb,Ti)4As4O18

Crystallography of ZimbabweiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 12.23 Å, b = 15.29 Å, c = 8.66 Å
Ratio:
a:b:c = 0.8 : 1 : 0.566
Unit Cell V:
1,619.39 ų (Calculated from Unit Cell)

Type Occurrence of ZimbabweiteHide

Synonyms of ZimbabweiteHide

Other Language Names for ZimbabweiteHide

Related Minerals - Nickel-Strunz GroupingHide

4.JA.05LeiteiteZn(As2O4)Mon. 2/m : P21/b
4.JA.10ReineriteZn3(AsO3)2Orth.
4.JA.15KaribibiteFe3+(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
4.JA.20KusachiiteCuBi2O4Tet.
4.JA.20SchafarzikiteFe2+Sb3+2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.20TrippkeiteCu[As2O4]Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.25ApuaniteFe2+Fe3+4Sb3+4O12STet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.30VersiliaiteFe2Fe4Sb6O16SOrth.
4.JA.35SchneiderhöhniteFe2+Fe3+3[As5O13]Tric. 1 : P1
4.JA.45LudlockitePbFe3+4As3+10O22Tric. 1 : P1
4.JA.50PaulmooreitePb2[As2O5]Mon.
4.JA.55StibivaniteSb2VO5Orth.
4.JA.60Chadwickite(UO2)[HAsO3]Tet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
23.3LeiteiteZn(As2O4)Mon. 2/m : P21/b
23.5Kuznetsovite(Hg+2)Hg2+(AsO4)ClIso. 2 3 : P21 3
23.6PaulmooreitePb2[As2O5]Mon.
23.7EcdemitePb6Cl4(As2O7)Tet.
23.8HeliophyllitePb6Cl4(As2O7)Orth.
23.9FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
23.10GebharditePb8(As2O5)2OCl6Mon.
23.13RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
23.14FreediteCu+Pb8(AsO3)2O3Cl5Mon. 2/m : B2/m
23.15ManganarsiteMn3(As2O4)(OH)4
23.17ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
23.18KaribibiteFe3+(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
23.19SchneiderhöhniteFe2+Fe3+3[As5O13]Tric. 1 : P1
23.20Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)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 ZimbabweiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bulletin de la Société française de Minéralogie et de Cristallographie (1986): 106: 331-336.
American Mineralogist (1988): 73: 1186-1190.
American Mineralogist (1990): 75: 244.

Internet Links for ZimbabweiteHide

Localities for ZimbabweiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Zimbabwe (TL)
 
  • Mashonaland West
    • Karoi District (Urungwe; Hurungwe District)
      • Mwami (Miami)
Foord, E.E.; Taggert jr., J.E.; Gaines, R.V.; Grubb, P. L.C & Kristiansen, R. (1986): Zimbabweite, a new alkali-lead-arsenic tantalate from St. Anns mine, Karoi District, Zimbabwe. Bulletin Minéralogie, 109: 331-336
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 1993-2017, 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: September 25, 2017 05:21:07 Page generated: August 6, 2017 10:41:34
Go to top of page