Mineralogy Database

Parakhinite Mineral Data

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General Parakhinite Information

Help on Chemical  Formula: Chemical Formula: Cu++3PbTe++++++O4(OH)6
Help on Composition: Composition: Molecular Weight = 691.48 gm
   Copper     27.57 %  Cu   34.51 % CuO
   Tellurium  18.45 %  Te   23.08 % TeO2
   Hydrogen    0.87 %  H     7.82 % H2O
   Lead       29.96 %  Pb   32.28 % PbO
   Oxygen     23.14 %  O
             ______        ______ 
             100.00 %       97.69 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3PbTeO4(OH)6
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Emerald mine, Tombstone, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in allusion to its dimorphous relationship to khinite.
Help on Name Pronunciation: Name Pronunciation: Parakhinite + Pronunciation Say PARAKHINITE
Help on Synonym: Synonym: ICSD 81604
  PDF 29-1420

Parakhinite Image

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Comments: Dark emerald-green hexagonal prismatic parakhinite crystals on matrix.
Location: 400 ft. level, Empire mine, Tombstone, Arizona. Scale: See Image.
© Rruff Database

Parakhinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.1215
Help on Cell Dimensions: Cell Dimensions: a = 5.753, c = 17.958, Z = 3; V = 514.73 Den(Calc)= 6.69
Help on Crystal System: Crystal System: Hexagonal - Trapezohedral H-M Symbol (6 2 2) Space Group: P 6222 or P 6422
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.49(1), 3.336(1), 4.8(0.8),

Physical Properties of Parakhinite

Help on Color: Color: Dark green.
Help on Density: Density: 6.5 - 6.7, Average = 6.6
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Streak: Streak: green

Optical Properties of Parakhinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.013 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.17,KPDmeas= 0.1723,KC= 0.1746
Ncalc = 2.13 - 2.17
Help on Optical Data: Optical Data: Uniaxial (-), e=2.12, w=2.155, bire=0.0350.

Calculated Properties of Parakhinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.86 gm/cc
note: Specific Gravity of Parakhinite =6.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEParakhinite = 594.91 barns/electron
U=PEParakhinite x rElectron Density=3,486.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Parakhinite is Not Radioactive

Parakhinite Classification

Help on  Dana Class: Dana Class: (33)Selenates and Tellurates
  (33.02)as A+ (B++)m XO6 Zq � x(H2O) where x can equal 0
  (33.02.04)Dana Group Parakhinite Cu3PbTeO4(OH)6 P 6222 or P 6422 6 2 2
Help on  Strunz Class: Strunz Class: 04.FD.30 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FD -Hydroxides with OH, without H2O; chains of edge-sharing octahedra
04.FD.30 Khinite PbCu3TeO6(OH)2 F ddd 2/m 2/m 2/m
04.FD.30 Parakhinite Cu3PbTeO4(OH)6 P 6222 or P 6422 6 2 2

Other Parakhinite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Parakhinite :
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: 04.FD.30





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