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Metanováčekite

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Formula:
Mg(UO2)2(AsO4)2 · 4-8H2O
System:
Tetragonal
Colour:
yellow
Lustre:
Vitreous
Hardness:
Meta-autunite Group.

Can be considered a strongly dehydrated nováčekite (compare nováčekite I and nováčekite II).
Reversibly dehydrates from nováčekite under ambient conditions.


Classification of Metanováčekite

Approved
8.EB.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.10.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
20.7.6

20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U

Physical Properties of Metanováčekite

Vitreous
Colour:
yellow
Streak:
yellowish white
Hardness (Mohs):
Cleavage:
Perfect

Optical Data of Metanováčekite

Type:
Uniaxial (-)
RI values:
nω = 1.632 nε = 1.595
Max Birefringence:
δ = 0.037
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Metanováčekite

IMA Formula:
Mg(UO2)2(AsO4)2 · 4-8H2O
Elements listed in formula:

Crystallography of Metanováčekite

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
P4/n
Cell Parameters:
a = 7.16 Å, c = 8.58 Å
Ratio:
a:c = 1 : 1.198
Unit Cell Volume:
V 439.86 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Tabular.
Comment:
Maybe pseudo-tetragonal.
X-Ray Powder Diffraction Data:
d-spacingIntensity
8.52 (10)
5.05 (4b)
4.29 (5)
3.57 (9)
3.02 (4)
2.14 (6)
1.791 (5)

Type Occurrence of Metanováčekite

Relationship of Metanováčekite to other Species

Other Members of Group:
AbernathyiteK(UO2)(AsO4) · 3H2O
Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2O
LehneriteMn2+(UO2)2(PO4)2 · 8H2O
Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2O
Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O
MetalodèviteZn(UO2)2(AsO4)2 · 10H2O
MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Metauranocircite-IBa(UO2)2(PO4)2 · 7H2O
MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2O
Uramarsite(NH4,H3O)2(UO2)2(AsO4,PO4)2 · 6H2O
Uramphite(NH4)2(UO2)2(PO4)2 · 6H2O
8.EB.05AutuniteCa(UO2)2(PO4)2 · 10-12H2O
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2O
8.EB.05KahleriteFe2+(UO2)2(AsO4)2 · 12H2O
8.EB.05Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2O
8.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2O
8.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2O
8.EB.05UranospiniteCa(UO2)2(AsO4)2 · 10H2O
8.EB.05XiangjiangiteFe3+(UO2)4(PO4)2(SO4)2(OH) · 22H2O
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2O
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2O
8.EB.10BassetiteFe2+(UO2)2(PO4)2(H2O)10
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2O
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10Metauranocircite-IBa(UO2)2(PO4)2 · 6H2O
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2O
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
8.EB.10PrzhevalskitePb(UO2)2(PO4)2 · 4H2O
8.EB.10Meta-lodèviteZn(UO2)2(AsO4)2 · 10H2O
8.EB.15AbernathyiteK(UO2)AsO4 · 3H2O
8.EB.15Chernikovite(H3O)(UO2)(PO4) · 3H2O
8.EB.15Meta-ankoleiteK(UO2)(PO4) · 3H2O
8.EB.15NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2O
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2O
8.EB.15UramphiteNH4(UO2)PO4 · 3H2O
8.EB.15UramarsiteNH4(UO2)AsO4 · 3H2O
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2F · 6.5H2O
8.EB.25ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2O
8.EB.25Uranospathite(Al,◻)(UO2)2F(PO4)2 · 20(H2O,F)
8.EB.30VochteniteFe2+Fe3+(UO2)4(PO4)4(OH) · 12-13H2O
8.EB.35CoconinoiteFe23+Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O
8.EB.40RanunculiteAl(UO2)(PO3OH)(OH)3 · 4H2O
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2O
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2O
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2O
20.7.1Trögerite(H3O)(UO2)(AsO4) · 3H2O
20.7.2NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2O
20.7.3AbernathyiteK(UO2)AsO4 · 3H2O
20.7.4MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
20.7.5ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
20.7.7Nováčekite-IMg(UO2)2(AsO4)2 · 12H2O
20.7.8ArsenuranyliteCa(UO2)4(AsO4)2(OH)4 · 6H2O
20.7.9MetauranospiniteCa(UO2)2(AsO4)2 · 8H2O
20.7.10UranospiniteCa(UO2)2(AsO4)2 · 10H2O
20.7.11MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2O
20.7.12HeinrichiteBa(UO2)2(AsO4)2 · 10H2O
20.7.13MetalodèviteZn(UO2)2(AsO4)2 · 10H2O
20.7.14ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2O
20.7.15HallimonditePb2(UO2)(AsO4)2 · nH2O
20.7.16HügelitePb2(UO2)3(AsO4)2O2 · 5H2O
20.7.17AsselbornitePb(UO2)4(BiO)3(AsO4)2(OH)7 · 4H2O
20.7.18MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2O
20.7.19KahleriteFe2+(UO2)2(AsO4)2 · 12H2O
20.7.20MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2O

Other Names for Metanováčekite

Name in Other Languages:

Other Information

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 Metanováčekite

Reference List:
Walenta, K. & Wimmenauer, W. (1961): Der Mineralbestand des Michaelganges im Weiler bei Lahr (Schwarzwald). Jh. Geol. Landesamt Baden-Württemberg, 4, 7-37.

Walenta, K. (1964): Rare arsenate minerals with special consideration of occurrences in the Black Forest. Mineral. Petrog. Mitt. 9, 111-174. (in German)

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1974): 103: 609.

Jahreshefte des geologischen Landesamttes in Baden-Wüttemberg: 3: 17-51.

Internet Links for Metanováčekite

mindat.org URL:
https://www.mindat.org/min-2681.html
Please feel free to link to this page.

Localities for Metanováčekite

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.
(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.
Canada
 
  • Saskatchewan
    • Athabasca Basin
WATKINSON, D.H., HESLOP, J.B. & EWERT, W.D. (1975) Nickel sulphide-arsenide assemblages associated with uranium mineralization, Zimmer Lake area, Northern Saskatchewan. Canadian Mineralogist 13, 198-204.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
Plašil J, Sejkora J, Ondruš P, Veselovský F, Beran P, Goliáš V (2006): Supergene minerals in the Horní Slavkov uranium ore district, Czech Republic. Journal of the Czech Geological Society 51, 149-158.
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
Lapis 2002(7/8), 63-65
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Javorník (Jauernig)
Sejkora, J.: Uranové ložisko Zálesí v Rychlebských horách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 105-110.
France
 
  • Auvergne-Rhône-Alpes
    • Haute-Savoie
      • Vallorcine
Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
  • Occitanie
    • Hérault
      • Lodève
Le Règne Minéral, Hors Série IV (1998)
Stephan Wolfsried collection (PXRD-, SXRD- and EDS-analysed by Uwe Kolitsch)
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Baden-Baden
        • Müllenbach U deposit
K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
      • Lahr
        • Reichenbach
          • Weiler
Walenta, K. & Wimmenauer, W. (1961): Der Mineralbestand des Michaelganges im Weiler bei Lahr (Schwarzwald). Jh. Geol. Landesamt Baden-Württemberg, 4, 7-37. (in German); Wittern: "Mineralfundorte in Deutschland", 2001
      • Schenkenzell
        • Wittichen
          • Böckelsbach valley
S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Burgfelsen
No reference listed
          • Heubach Valley
Tscherm MPM 9 (1964), 111
      • Wolfach
        • Oberwolfach
          • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); Gröbner, J., Kolitsch, U. und Bayerl, R. (2005): Interessante Uranmineralien im Stinkspat der Grube Clara. Lapis 30 (10), 34-39; 90; Gröbner, J., Bayerl, R. und Kolitsch, U. (2006): Weitere Beobachtungen zu den Uran- und Vanadium-Paragenesen der Grube Clara aus den Jahren 2002, 2004 und 2005. Erzgräber 20, 1-10
  • Rhineland-Palatinate
    • Palatinate
      • Winnweiler
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Saxony
    • Erzgebirge
      • Schneeberg District
        • Neustädtel
J. Gröbner, U. Kolitsch: Lapis 30(7/8):71-73 (2005); Plášil, J., Sejkora, J., Čejka, J., Novák, M., Viñals, J., Ondruš, P., Veselovský, F., Škácha, P., Jehlička, J., Goliáš, V., Hluošek, J. (2010): Metarauchite, Ni(UO2)2(AsO4)2•8H2O, from Jáchymov and Schneeburg: a new member of the autunite group. Canadian Mineralogist, 48, 335-350.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Bou Azer
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Tamdrost
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Namibia
 
  • Erongo Region
Collection of NHM, Vienna
    • Karibib District
Schnaitmann, E. A., Nägele, H., Niedermayr, G., Brandstätter, F. & Jahn, S. (2007): Das Metazeunerit-Pocket auf Tubussis 22, Erongo. Mineralien-Welt 18 (2), 33-43. (in German)
Switzerland
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
http://fglb.clubdesk.ch/clubdesk/www; Meisser, N. & Raber, T. (2015): Metanováčekit. Schweizer Strahler 49 (1), 29-30. [originally described in Graeser et al. (2008) as an unidentified uranyl arsenate]
    • Le Trient Valley
      • Les Marécottes
- Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
UK
 
  • England
    • Cornwall
      • St Just District
        • St Just
          • Botallack
Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
USA
 
  • Arizona
    • Gila Co.
      • Sierra Ancha Mts
        • Sierra Ancha District
          • Asbestos Point (Asbestos Peak) area
            • Bull Canyon
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 130, 295; Granger, H.C. & R.B. Raup (1969), Geology of uranium deposits in the Dripping Spring quartzite, Gila Co., AZ, USGS PP 595.
  • Pennsylvania
    • Northampton Co.
      • Easton
        • Chestnut Hill (College Hill; Lafayette Hill; Mount Lafayette; Paxinosa Ridge)
          • C.K. Williams Quarry complex (Williams and Company Rock Quarry)
Smith, II, R. C. (1977) Metanovacekite Chapter in The Mineralogy of
  • South Dakota
    • Harding Co.
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
Mineral and/or Locality  
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