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Mrazekite Mineral Data

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General Mrazekite Information

Help on Chemical  Formula: Chemical Formula: Bi+++2Cu++3(PO4)2O2(OH)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 900.59 gm
   Copper      21.17 %  Cu   26.50 % CuO
   Bismuth     46.41 %  Bi   51.74 % Bi2O3
   Phosphorus   6.88 %  P    15.76 % P2O5
   Hydrogen     0.67 %  H     6.00 % H2O
   Oxygen      24.87 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi2Cu3(PO4)2O2(OH)2•2(H2O)
Help on Environment: Environment: Vesuvianite=grossular skarn invaded by secondary copper, bismuth, and vanadium mineralization.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Benambra, Victoria, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Zdenek Mrazek (1952-1984) who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Mrazekite + Pronunciation Say MRAZEKITE
Help on Synonym: Synonym: ICSD 79140
  PDF 47-1787

Mrazekite Image

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Comments: Blue, prismatic crystal of mrázekite on matrix.
Location: Arme Hilfe Mine, Ullersreuth, Hirschberg, Vogtland, Saxony, Germany. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Mrazekite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4323:1:3.3544
Help on Cell Dimensions: Cell Dimensions: a = 9.057, b = 6.323, c = 21.21, Z = 4; beta = 101.3333° V = 1,190.96 Den(Calc)= 5.02
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.04(1), 2.924(0.83), 7.625(0.78),

Physical Properties of Mrazekite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Blue, Cerulean blue.
Help on Density: Density: 4.9
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: blue

Optical Properties of Mrazekite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1703,KPDmeas= 0.1745,KC= 0.1735
Ncalc = 1.85 - 1.87
Help on Optical Data: Optical Data: Biaxial (-), a=1.8, b=1.86-1.87, g=1.9, bire=0.1000

Calculated Properties of Mrazekite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.36 gm/cc
note: Specific Gravity of Mrazekite =4.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001208559
Boson Index = 0.9998791441
Help on Photoelectric: Photoelectric: PEMrazekite = 849.08 barns/electron
U=PEMrazekite x rElectron Density=3,705.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mrazekite is Not Radioactive

Mrazekite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.04)where (AB)5 (XO4)2 Zq � x(H2O)
  (42.04.15)Dana Group Mrazekite Bi2Cu3(PO4)2O2(OH)2•2(H2O) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 08.DJ.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DJ -With large and medium-sized cations, (OH, etc.):RO4 = 1:l
08.DJ.40 Mrazekite Bi2Cu3(PO4)2O2(OH)2•2(H2O) P 21/n 2/m

Other Mrazekite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Bull.Miner.,Vol.107-111,1984-1988) OPTIC PROP.(Bull.Miner.,Vol.107-111,1984-1988)
Help on See Also: See Also: Links to other databases for Mrazekite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.DJ.40





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