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 MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember 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

Zwieselite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Fe2+,Mn2+)2(PO4)F
System:
Monoclinic
Colour:
Dark brown; black ...
Lustre:
Sub-Vitreous, Resinous, Greasy
Hardness:
5 - 5½
Member of:
Name:
Named in 1841 by August Breithaupt for the town of Zwiesel (Bavaria, Germany) where the mineral was found.
Triplite-Zwieselite Series.
The Fe2+ analogue of Triplite.

Classification of Zwieselite

Approved
8.BB.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
41.6.1.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
22.1.25

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
mindat.org URL:
http://www.mindat.org/min-4436.html
Please feel free to link to this page.

First Recorded Occurrence of Zwieselite

Year of Discovery:
1841
Geological Setting of First Recorded Material:
Granite pegmatite

Physical Properties of Zwieselite

Sub-Vitreous, Resinous, Greasy
Diaphaneity (Transparency):
Translucent
Colour:
Dark brown; black (altered)
Streak:
White to tan
Hardness (Mohs):
5 - 5½
Tenacity:
Brittle
Cleavage:
Distinct/Good
{001} good, {010} fair, {100} poor
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.89 - 3.97 g/cm3 (Measured)    3.92 g/cm3 (Calculated)

Crystallography of Zwieselite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 12.085Å, b = 6.536Å, c = 9.910Å
β = 105.63°
Ratio:
a:b:c = 1.849 : 1 : 1.516
Unit Cell Volume:
V 753.82 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Usually massive, morphological crystals unknown
Comment:
I2/a
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.695 (50)
3.431 (40)
3.257 (70)
3.053 (90)
2.874 (100)
2.120 (40)
2.024 (40)
Comments:
Horni Slavkov. Czech Republic

Optical Data of Zwieselite

Type:
Biaxial (+)
RI values:
nα = 1.686 - 1.696 nβ = 1.690 - 1.704 nγ = 1.703 - 1.713
2V:
Measured: 58° , Calculated: 60°
Birefringence:
0.017
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v
Pleochroism:
Visible
Comments:
yellow brown to reddish brown

Chemical Properties of Zwieselite

Formula:
(Fe2+,Mn2+)2(PO4)F
Idealised Formula:
Fe22+(PO4)F
Essential elements:
All elements listed in formula:
Common Impurities:
Mg,Ca

Relationship of Zwieselite to other Species

Series:
Forms a series with Triplite (see here)
Member of:
Other Members of Group:
Triplite(Mn2+,Fe2+)2(PO4)(F,OH)
Triploidite(Mn2+,Fe2+)2(PO4)(OH)
Wolfeite(Fe2+,Mn2+)2(PO4)(OH)
8.BB.05AmblygoniteLiAl(PO4)F
8.BB.05MontebrasiteLiAl(PO4)(OH)
8.BB.05TavoriteLiFe3+(PO4)(OH)
8.BB.10Triplite(Mn2+,Fe2+)2(PO4)(F,OH)
8.BB.15SarkiniteMn22+(AsO4)(OH)
8.BB.15Triploidite(Mn2+,Fe2+)2(PO4)(OH)
8.BB.15Wagnerite(Mg,Fe2+)2(PO4)F
8.BB.15Wolfeite(Fe2+,Mn2+)2(PO4)(OH)
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)O
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)O
8.BB.15HydroxylwagneriteMg2(PO4)(OH)
8.BB.20HoltedahliteMg2(PO4)(OH)
8.BB.20Satterlyite(Fe2+,Mg,Fe3+)2(PO4)(OH,O)
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,☐)
8.BB.30AdamiteZn2(AsO4)(OH)
8.BB.30EveiteMn22+(AsO4)(OH)
8.BB.30LibetheniteCu2(PO4)(OH)
8.BB.30OliveniteCu2(AsO4)(OH)
8.BB.30ZincolibetheniteCuZn(PO4)(OH)
8.BB.30ZincoliveniteCuZn(AsO4)(OH)
8.BB.30AuriacusiteFe3+Cu2+(AsO4)O
8.BB.35ParadamiteZn2(AsO4)(OH)
8.BB.35TarbuttiteZn2(PO4)(OH)
8.BB.40BarbosaliteFe2+Fe23+(PO4)2(OH)2
8.BB.40HentscheliteCuFe23+(PO4)2(OH)2
8.BB.40Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2
8.BB.40WilhelmkleiniteZnFe23+(AsO4)2(OH)2
8.BB.45TrolleiteAl4(PO4)3(OH)3
8.BB.50NamibiteCu(BiO)2(VO4)(OH)
8.BB.55PhosphoellenbergeriteMg14(PO4)6(HPO4,CO3)2(OH)6
8.BB.60UrusoviteCuAl(AsO4)O
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2
8.BB.70TuraniteCu5(VO4)2(OH)4
8.BB.75StoiberiteCu5(VO4)2O2
8.BB.80FingeriteCu11(VO4)6O2
8.BB.85AverieviteCu6(VO4)2O2Cl2
8.BB.90LipscombiteFe2+Fe23+(PO4)2(OH)2
8.BB.90RichelliteCaFe23+(PO4)2(OH,F)2
8.BB.90ZinclipscombiteZnFe23+(PO4)2(OH)2
22.1.1AmblygoniteLiAl(PO4)F
22.1.2LacroixiteNaAl(PO4)F
22.1.3NatrophosphateNa7(PO4)2F · 19H2O
22.1.5NacaphiteNa2Ca(PO4)F
22.1.6ArctiteNa2Ca4(PO4)3F
22.1.7NefedoviteNa5Ca4(PO4)4F
22.1.9FluorapatiteCa2Ca3(PO4)3F
22.1.10HerderiteCaBePO4(F,OH)
22.1.11IsokiteCaMg(PO4)F
22.1.12PanasqueiraiteCaMg(PO4)(OH,F)
22.1.13BabefphiteBaBePO4(F,OH)
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2O
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2O
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
22.1.17BøggilditeNa2Sr2Al2PO4F9
22.1.18FluorstrophiteSrCaSr3(PO4)3F
22.1.19ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)
22.1.21MaxwelliteNaFe3+(AsO4)F
22.1.22Wagnerite(Mg,Fe2+)2(PO4)F
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)
22.1.24Magniotriplite(Mg,Fe2+,Mn2+)2PO4F
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2O
22.1.27RichelliteCaFe23+(PO4)2(OH,F)2
22.1.28SvabiteCa5(AsO4)3F
22.1.29TilasiteCaMg(AsO4)F
22.1.30Johnbaumite-MCa5(AsO4)3OH
22.1.31DurangiteNaAl(AsO4)F

Other Names for Zwieselite

Name in Other Languages:

Other Information

Not fluorescent in UV
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 Zwieselite

Reference List:
Breithaupt, A. (1841) Vollständige Handbuch der Mineralogie. Vol. 2: 299 (as Zwiselite).

Glocker, E.F. (1847) Generum et specierum mineralium secundum ordines naturales digestorum synopsis. Halle: 244.

Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 849.

Mineralogical Magazine (1957): 31: 587.

Acta Univ. Carol., Geol., Prague (1964): 97.

Internet Links for Zwieselite

Localities for Zwieselite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Argentina
 
  • Córdoba
    • San Alberto Department
      • Pampa de Achala
Milka K. de Brodtkorb (2006) Las Especies Minerales de la Republica Argentina, Vol. 2, p 428 (Asociación Mineralógica Argentina)
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill District
  • South Australia
    • Olary Province
      • Bimbowrie Station
      • Boolcoomatta Reserve (Boolcoomata Station; Boolcoomatta)
Lottermoser, B.G., and Lu, J. (1997): Mineralogy and Petrology 59, 1-19.
  • Victoria
    • Loddon Shire
      • Pyramid Hill
W. Birch 1996 AJM 2(2)
Canada
 
  • British Columbia
    • Revelstoke Mining Division
      • Revelstoke
DIXON,A., CEMPIREK, J. & GROAT, L.A. (2014) Mineralogy and geochemistry of pegmatites on Mount Begbie, British Columbia. Canadian Mineralogist 52, 129-164.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
        • Krásno (Schönfeld)
Petr Pauliš (2000): Nejzajímavější mineralogická naleziště Čech, Kuttna, Kutná Hora; Sejkora, J., Škoda, R., Ondruš, P., Beran, P. & Susser, C. (2006): Mineralogy of phosphate accumulations in the Huber stock, Krásno ore district, Slavkovský les area, Czech Republic. Journal of the Czech Geological Society 51, 103-147.
  • Moravia (Mähren; Maehren)
    • Vysočina Region
      • Velké Meziříčí
Škoda, R., Staněk, J., Čopjaková, R.: Minerální asociace fosfátových nodulí z granitického pegmatitu od Cyrilova u Velkého Meziříčí, Moldanubikum; část 1 – primární a exsoluční fáze. Acta Mus. Moraviae, Sci. geol., 2007, 92, 59-74.
      • Žďár nad Sázavou
Staněk, J.: Parageneze minerálů pegmatitových žil z Hatí u Dolních Borů na západní Moravě. Acta Mus. Moraviae, Sci. nat., vol. 76, pages 19-49.
Staněk, J.: Asociace minerálů významnějších pegmatitových žil v Hatích u Dolních Borů na západní Moravě. Acta Musei Moraviae, Scientiae naturales, 1997, roč. 82, 3-19.
Finland
 
  • Southwestern Finland Region
    • Kemiö Island (Kimito Island)
Pertti Hyvärinen collection;
France
 
  • Languedoc-Roussillon
    • Pyrénées-Orientales
      • Massif du Canigou
        • Valmanya
Guitard, G. (2010): Catalogue raisonné de la collection de minéralogie régionale, C.E.R.P. de Tautavel, 110.
  • Limousin
    • Haute-Vienne
      • Bessines-sur-Gartempe
http://perso.wanadoo.fr/jeldemine/listes%20mineraux.html
Le Règne Minéral, Hors Série IV, 1998
      • Razès
        • Chanteloube
          • Vilatte Quarries (La Vilate)
Le Règne Minéral, Hors Série IV, 1998
http://perso.wanadoo.fr/jeldemine/listes%20mineraux.html
      • Saint-Sylvestre
Le Règne Minéral, Hors Série IV, 1998
Germany
 
  • Bavaria
    • Lower Bavaria
      • Böbrach
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Bodenmais
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Drachselsried
        • Frath
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Röhrnbach
Habel, M. (2009): Der Granodioritbruch der Fa. Josef Uhrmann OHG, Steinerleinbach bei Röhrnbach. Mineralien-Welt 20 (2), 66-86.
      • Zwiesel
Min Mag 31 (1957), 587; Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Rabenstein
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 851; Nickel & Nichols, 1991 "Mineral Reference Manual", 238.
Obermüller, T., (1993): Über Phosphatmineralien aus Zwiesel/Bayerischer Wald, Der Aufschluss, Vol. 44, pp. 337-341
    • Upper Palatinate
      • Bärnau
Weiss: "Mineralfundstellen, Deutschland West", 1990
      • Lohberg
        • Lohberghütte
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Pleystein
Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
      • Plößberg
Weiss: "Mineralfundstellen, Deutschland West", 1990
      • Waidhaus
        • Hagendorf
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990; Dill H.G.: "Mineralogical and chemical composition of the Hagendorf-North Pegmatite, SE Germany - a monographic study", J. Min. Geochem, 2013
http://www.berthold-weber.de/h_miner.htm
      • Waldmünchen
        • Althütte
Lapis, 10 (4), 13-17.
  • Saxony
    • Erzgebirge
      • Ehrenfriedersdorf
Thomas, R., and Webster, J.D. (2000): Mineralium Deposita 35, 570-582.
      • Schmiedeberg
Frank Zschäbitz, Walter Hajek, Roland Stenzel (2011): Neufunde von Kolbeckit, Hübnerit und Roscherit aus Sadisdorf, Sachsen. Lapis, 36 (7-8), 37-39.
Namibia
 
  • Erongo Region
    • Karibib District
      • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
      • Tsaobismund Farm 85
Contrib Mineral Petrol (1986) 92:502-517
Portugal
 
  • Guarda District
    • Gouveia
      • Folgosinho
Keck, E., Witzke, T., Pöllmann, H. & Friese, K. (1998): Benyacarit aus ostbayerischen und portugiesischen Pegmatiten. Aufschluss 49, 281-285.
    • Sabugal
      • Bendada
Schnorrer-Köhler (1991), Mineral Occurrences.
  • Viseu District
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
Sweden
 
  • Södermanland
    • Norrö
Smeds, S-A., Uher, P., Cerny, P., Wise, M.A., Gustafsson, L. & Penner, P. (1998): Graftonite-beusite in Sweden: primary phases, products of exsolution, and distribution in zoned populations of granitic pegmatites. Canadian Mineralogist. 36, 377-394.
    • Stockholm
Smeds, S-A., Uher, P., Cerny, P., Wise, M.A., Gustafsson, L. & Penner, P. (1998): Graftonite-beusite in Sweden: primary phases, products of exsolution, and distribution in zoned populations of granitic pegmatites. Canadian Mineralogist. 36, 377-394.
UK
 
  • England
    • Cornwall
      • Mount's Bay District
        • Breage
No reference listed
USA
 
  • Colorado
    • Larimer Co.
      • Crystal Mountain Pegmatite District (Storm Mountain District)
        • Storm Mountain
Minerals of Colorado (1997) E.B. Eckels
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 1993-2015, 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: April 26, 2015 16:44:50 Page generated: April 25, 2015 22:52:17