Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Zwieselite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Zwieselite Photos (12)



Formula:
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
System:MonoclinicColour:Dark brown; black ...
Lustre:Vitreous, ResinousHardness:5 - 5½
Member of:Triplite Group
Name:Named after the town of Zwiesel (Bavaria, Germany).


Triplite Group.
Triplite-Zwieselite Series.
The Fe2+ analogue of Triplite.

Classification of Zwieselite

IMA status:Approved
Strunz 8th edition ID:7/B.03-30
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:41.6.1.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
Hey's CIM Ref.: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.

Type Occurrence of Zwieselite

Type Locality:Birkhöhe Quarry, Town Centre, Zwiesel, Bavarian Forest, Lower Bavaria, Bavaria, Germany
Year of Discovery:1841

Physical Properties of Zwieselite

Lustre:Vitreous, Resinous
Diaphaneity (Transparency):Translucent
Colour:Dark brown; black (altered)
Streak:White to tan
Hardness (Mohs):5 - 5½

Crystallography of Zwieselite

Crystal System:Monoclinic
Cell Parameters:a = 12.08Å, b = 6.53Å, c = 9.91Å
β = 105.63°
Ratio:a:b:c = 1.85 : 1 : 1.518
Unit Cell Volume:V 752.82 ų (Calculated from Unit Cell)

Optical Data of Zwieselite

Type:Biaxial (+)
RI values: nα = 1.686 nβ = 1.690 nγ = 1.703
2V:Measured: 58° , Calculated: 60°
Maximum Birefringence:δ = 0.017

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v

Chemical Properties of Zwieselite

Formula:
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
Idealised Formula:
Fe
2+
2
(PO
 
4
)F
Essential elements:F, Fe, O, P
All elements listed in formula:F, Fe, Mn, O, P
Common Impurities:Mg,Ca

Relationship of Zwieselite to other Species

Series:Forms a series with Triplite (see here)
Member of:Triplite Group
Other Members of Group:

- +
Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
Related Minerals - Nickel-Strunz Grouping):

- +
8.BB.05Amblygonite
LiAl(PO
 
4
)F
8.BB.05Montebrasite
LiAl(PO
 
4
)(OH)
8.BB.05Tavorite
LiFe
3+
 
(PO
 
4
)(OH)
8.BB.10Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
8.BB.15Sarkinite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.15Triploidite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Wolfeite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Stanĕkite
(Mn
2+
 
,Fe
2+
 
,Mg)Fe
3+
 
(PO
 
4
)O
8.BB.15Joosteite
Mn
2+
 
(Mn
3+
 
,Fe
3+
 
)(PO
 
4
)O
8.BB.15Hydroxylwagnerite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Holtedahlite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
8.BB.25Althausite
Mg
 
2
(PO
 
4
)(OH,F)
8.BB.30Adamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.30Eveite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.30Libethenite
Cu
 
2
(PO
 
4
)(OH)
8.BB.30Olivenite
Cu
 
2
(AsO
 
4
)(OH)
8.BB.30Zincolibethenite
CuZn(PO
 
4
)(OH)
8.BB.30Zincolivenite
CuZn(AsO
 
4
)(OH)
8.BB.30Auriacusite
Fe
3+
 
Cu
2+
 
(AsO
 
4
)O
8.BB.35Paradamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.35Tarbuttite
Zn
 
2
(PO
 
4
)(OH)
8.BB.40Barbosalite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Wilhelmkleinite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BB.45Trolleite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
8.BB.50Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
8.BB.55Phosphoellenbergerite
Mg
 
14
(PO
 
4
)
 
6
(HPO
 
4
,CO
 
3
)
 
2
(OH)
 
6
8.BB.60Urusovite
CuAl(AsO
 
4
)O
8.BB.65Theoparacelsite
Cu
 
3
(As
 
2
O
 
7
)(OH)
 
2
8.BB.70Turanite
Cu
 
5
(VO
 
4
)
 
2
(OH)
 
4
8.BB.75Stoiberite
Cu
 
5
(VO
 
4
)
 
2
O
 
2
8.BB.80Fingerite
Cu
 
11
(VO
 
4
)
 
6
O
 
2
8.BB.85Averievite
Cu
 
6
(VO
 
4
)
 
2
O
 
2
Cl
 
2
8.BB.90Lipscombite
(Fe
2+
 
,Mn
2+
 
)Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.90Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
8.BB.90Zinclipscombite
ZnFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
22.1.1Amblygonite
LiAl(PO
 
4
)F
22.1.2Lacroixite
NaAl(PO
 
4
)F
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F · 19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca(PO
 
4
)F
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
22.1.10Herderite
CaBePO
 
4
(F,OH)
22.1.11Isokite
CaMg(PO
 
4
)F
22.1.12Panasqueiraite
CaMg(PO
 
4
)(OH,F)
22.1.13Babefphite
BaBePO
 
4
(F,OH)
22.1.14Fluellite
Al
 
2
(PO
 
4
)F
 
2
(OH) · 7H
 
2
O
22.1.15Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
22.1.16Morinite
NaCa
 
2
Al
 
2
(PO
 
4
)
 
2
(OH)F
 
4
 · 2H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.18Fluorstrophite
SrCaSr
 
3
(PO
 
4
)
 
3
F
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
22.1.20Väyrynenite
Mn
2+
 
Be(PO
 
4
)(OH,F)
22.1.21Maxwellite
NaFe
3+
 
(AsO
 
4
)F
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
22.1.24Magniotriplite
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
22.1.26Mcauslanite
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
22.1.27Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
22.1.28Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
22.1.29Tilasite
CaMg(AsO
 
4
)F
22.1.30Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
22.1.31Durangite
NaAl(AsO
 
4
)F

Other Names for Zwieselite

Synonyms:
Zwiselite
Other Languages:
German:Zwieselit
Russian:Цвизелит
Spanish:Zwieselita

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 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

Search Engines:
  • Look for Zwieselite on Google
  • Look for Zwieselite images on Google
    • External Links:
  • Look for Zwieselite on Webmineral
  • Look for Zwieselite on Athena Mineralogy
  • Look for Zwieselite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Zwieselite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Top quality minerals from Kristalle of California
  • Buy RARE Minerals from Rocks of Africa
  • Buy fine minerals and gemstones from Pala International
  • Search for Zwieselite on Well-Arranged Molecules
  • Find Zwieselite on www.crystalclassics.co.uk
  • The Arkenstone - Fine Minerals
  • Buy minerals from YourMineralCollection
  • Fine Minerals from Weinrich Minerals, Inc.
  • webminerals
  • SpiriferMinerals.com - high quality low prices
  • Search for - Zwieselite - on e-Rocks Mineral Sales & Auctions
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Zwieselite

    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.
    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
    • South Australia
      • Olary Province
        • Bimbowrie Station
        • Kalabity homestead area
    		Lottermoser, B.G., and Lu, J. (1997): Mineralogy and Petrology 59, 1-19.
    • Victoria
      • Pyramid Hill
    		W. Birch 1996 AJM 2(2)
    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.
    France
     
    • 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
        • Bavarian Forest
          • Arnbruck
            • Drachselsried
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Lam
            • Lohberghütte
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Waldkirchen
            • Röhrnbach
    		Habel, M. (2009): Der Granodioritbruch der Fa. Josef Uhrmann OHG, Steinerleinbach bei Röhrnbach. Mineralien-Welt 20 (2), 66-86.
          • Zwiesel
            • Bodenmais
              • Auerkiel
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    S. 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.
            • Town Centre
    		Min Mag 31 (1957), 587; Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Obermüller, T., (1993): Über Phosphatmineralien aus Zwiesel/Bayerischer Wald, Der Aufschluss, Vol. 44, pp. 337-341
      • Upper Palatinate
        • Oberpfälzer Wald
          • Plößberg
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
          • Tirschenreuth
            • Marchaney
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
          • Vohenstrauß
            • Pleystein
    		Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
            • Waidhaus
              • Hagendorf
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    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
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 7th May 2013 11:33:39
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds