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About MrázekiteHide

Zdeněk Mrázek
Bi2Cu3(PO4)2O2(OH)2 · H2O
Cerulean blue
2 - 3
Specific Gravity:
Crystal System:
Named by T. Rídkošil, V. Šrein, J. Fábry, J. Hybler, and B.A. Maximov in 1992 in honor of Zdeněk Mrázek (15 February 1952 - 15 April 1984), a Czech mineralogist who first collected the species and suspected it was new.
This page provides mineralogical data about Mrázekite.

Classification of MrázekiteHide

Approval Year:
First Published:

D : Phosphates, etc. with additional anions, with H2O
J : With large and medium-sized cations, (OH, etc.):RO4 = 1:1

4 : (AB)5(XO4)2Zq·xH2O

Physical Properties of MrázekiteHide

Transparent, Translucent
Cerulean blue
light blue
2 - 3 on Mohs scale
4.90(2) g/cm3 (Measured)    5.00 g/cm3 (Calculated)

Optical Data of MrázekiteHide

Biaxial (-)
RI values:
nα = 1.800 nβ = 1.860 - 1.870 nγ = 1.900
Measured: 66° to 68°
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
r < v strong
in ink blue tints

Chemical Properties of MrázekiteHide

Bi2Cu3(PO4)2O2(OH)2 · H2O
IMA Formula:
Bi2Cu3(PO4)2O2(OH)2 · 2H2O

Crystallography of MrázekiteHide

Crystal System:
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 9.065(1) Å, b = 6.340(1) Å, c = 5.410(3) Å
β = 101.57(1)°
a:b:c = 1.43 : 1 : 0.853
Unit Cell V:
304.61 ų (Calculated from Unit Cell)
Acicular to slender bladed crystals. Wedgelike terminations, rosettes or spherules of radial acicular crystals, crusts.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
7.630 Å(100)
6.089 Å(42)
5.407 Å(56)
5.198 Å(46)
5.146 Å(49)
3.637 Å(35)
3.170 Å(35)
3.042 Å(87)
3.016 Å(77)
2.927 Å(76)
Only peaks >30% of max. Data from Effenberger, et al. 1994.

Geological EnvironmentHide

Paragenetic Mode(s):
•  Oxidation
Geological Setting:
Oxidized zone of polymetallic sulfide deposits.

Type Occurrence of MrázekiteHide

General Appearance of Type Material:
Slender needles isolated or loosely grouped as small rosettes in a quartz matrix.
Place of Conservation of Type Material:
Charles University, Prague
Geological Setting of Type Material:
Oxidation zone of an ore deposit containing chalcopyrite, tetrahedrite, psuedomalachite, apatite and an unknown primary bismuth mineral.
Associated Minerals at Type Locality:

Synonyms of MrázekiteHide

Other Language Names for MrázekiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Mrázekite associated with EulytineBi4(SiO4)3
3 photos of Mrázekite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
2 photos of Mrázekite associated with QuartzSiO2
1 photo of Mrázekite associated with EmplectiteCuBiS2
1 photo of Mrázekite associated with TorberniteCu(UO2)2(PO4)2 · 12H2O

Related Minerals - Nickel-Strunz GroupingHide

8.DJ.05JohnwalkiteK(Mn2+,Fe2+,Fe3+)2(Nb5+,Ta5+)(PO4)2O2 · 2(H2O,OH)Orth.
8.DJ.05OlmsteaditeKFe2+2(Nb5+,Ta5+)(PO4)2O2 · 2H2OOrth.
8.DJ.10GatumbaiteCaAl2(PO4)2(OH)2 · H2OMon. 2/m : P2/m
8.DJ.15CamgasiteCaMg(AsO4)(OH) · 5H2OMon. 2/m : P21/m
8.DJ.20Phosphofibrite(H2O,K)3.5Fe8(PO4)6(OH)7 · 5H2OMon. 2/m
8.DJ.20Meurigite-KKFe3+8(PO4)6(OH)7 · 6.5H2OMon. 2/m : B2/b
8.DJ.20Meurigite-NaNaFe3+8(PO4)6(OH)7 · 6.5H2OMon. 2/m : B2/b
8.DJ.25JungiteCa2Zn4Fe3+8(PO4)9(OH)9 · 16H2OOrth.
8.DJ.30WycheproofiteNaAlZr(PO4)2(OH) · H2OTric.
8.DJ.35ErcititeNa2Mn3+2(PO4)2(OH)2 · 4H2OMon.
8.DJ.45AttikaiteCa3Cu2Al2(AsO4)4(OH)4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pban

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 MrázekiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Rídkošil, T., Šrein, V., Fábry, J., Hybler, J., Maximov, B.A. (1992) Mrázekite, Bi2Cu3(OH)2O2(PO4)2·2H2O. The Canadian Mineralogist: 30: 215-224.
Jambor, J.L. (1992) New mineral names. American Mineralogist: 77: 1305-1309.
Effenberger, H., Krause, W., Belendorff, K., Bernhardt, H.J., Medenbach, O., Hybler, J., Petříček, V. (1994) Revision of the crystal structure of mrázekite, Bi2Cu3(OH)2O2(PO4)2·2H2O. The Canadian Mineralogist: 32: 365-372.
Jambor, J.L., Puziewicz, J., Roberts, A.C. (1995) New mineral names. American Mineralogist: 80: 404-409.

Internet Links for MrázekiteHide

Localities for MrázekiteHide

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.
  • Victoria
    • East Gippsland Shire
      • Benambra
        • Morass Creek gorge
Mineralogical Record: 29: 164.
Czech Republic
  • Karlovy Vary Region
    • Karlovy Vary District
      • Abertamy
P.Pauliš, J.Sejkora, M.Urban 2015 - Cínový revír Hřebečná. Mineral XXIII.,2015/4
Lapis 2002(7/8), 63-65
  • Grand Est
    • Haut-Rhin
      • Colmar-Ribeauvillé
        • Ste Marie-aux-Mines
Le cahier des micromnteurs, 1998, 1, pp 27-28; Chiappero, P.-J., Forner, H., Lefevre, M., Meisser, N., and Moreau, F. (1995): Mrazekit aus Brézouard, Dépt. Bas-Rhin. Lapis, 20, 21 (in German).
Paul De Bondt.
  • Hesse
    • Darmstadt
      • Bergstraße
        • Lautertal (Odenwald)
          • Gadernheim
No reference listed
          • Reichenbach
            • Hohenstein
No reference listed
No reference listed
  • Thuringia
    • Vogtland
      • Hirschberg
        • Ullersreuth
T. Witzke et al.: Lapis 2001(12), 13-27
  • Viseu
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
César Menor-Salván (2012) Mrázekita, Bi2Cu3(PO4)2O2(OH)2·2H2O, de la mina Assunçao (Aldeia Nova, Ferreria de Aves, Viseu, Portugal). ACOPIOS-Revista Ibérica de Mineralogía, Vol 3 (2012): 21-25.
  • Caraş-Severin
    • Banat Mountains
      • Moldova Nouă-Sasca Cu-Mo ore field
No reference listed
Slovakia (TL)
  • Banská Bystrica Region
    • Banská Bystrica District
      • Ľubietová
Řídkošil, T., Šrein, V., Fábry, J., Hybler, J., Maximov, B. A. (1992): Mrázekite, Bi2Cu3(OH)2O2(PO4).2H2O, a new mineral species and its crystal structure. Canadian Mineralogist, 30, 215-224.
Řídkošil T., Šrein V., Fábry J., Hybler J., Maximov B. A., 1992: Mrázekite, Bi2Cu3(OH)2O2(PO4)•2H2O, a new mineral species and its crystal structure. Canadian Mineralogist, 30, 215-224. Števko M., Sejkora J., Malíková R., 2016: Nové údaje o supergénnych mineráloch z banského poľa Rainer, ložisko Ľubietová-Podlipa (Slovenská republika). Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) 24, 1, 1-12 (in Slovak with English abstract).
Mineral and/or Locality  
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