Chenite Mineral Data

Chenite Mineral Data
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General Chenite Information

Help on Chemical Formula: Chemical Formula: Pb4Cu(SO4)2(OH)6
Help on Composition: Composition: Molecular Weight = 1,186.52 gm
   Copper     5.36 %  Cu    6.70 % CuO
   Hydrogen   0.51 %  H     4.55 % H2O
   Lead      69.85 %  Pb   75.25 % PbO
   Sulfur     5.41 %  S    13.50 % SO3
   Oxygen    18.88 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb4Cu(SO4)2(OH)6
Help on Environment: Environment: On partially oxidized galena and chalcopyrite.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Susanna mine, Leadhills, Scotland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Tzong T. Chen (1942-), Canadian mineralogist.
Help on Synonym: Synonym: ICSD 63253
  IMA1983-069
  PDF 39-350
 

Chenite Image

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Chenite

Comments: Sky blue crystalline coating of chenite on matrix.
Location: Silberhutte, Altenau, Harz Mountains, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Chenite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7293:1:1.0045
Help on Cell Dimensions: Cell Dimensions: a = 5.791, b = 7.94, c = 7.976, Z = 1; alpha = 112.02°, beta = 97.73°, gamma = 100.45° V = 331.31 Den(Calc)= 5.95
Help on Crystal System: Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.6(1), 3.41(0.9), 5.55(0.7),
Click Here for Large Chenite Structure Window Crystal Structure:

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Hess H , Keller P , Riffel H , Neues Jahrbuch fur Mineralogie, Monatshefte , 1988 (1988) p.259-264, The crystal structure of chenite, Pb4Cu(OH)6(SO4)2, Locality: Leadhills, Scotland

 

Physical Properties of Chenite

Help on Cleavage: Cleavage: {100} Good, {001} Indistinct
Help on Color: Color: Sky blue.
Help on Density: Density: 5.98
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: pale blue
 

Optical Properties of Chenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1494,KPDmeas= 0.1509,KC= 0.1508
Ncalc = 1.9 - 1.91
Help on Optical Data: Optical Data: Biaxial (-), a=1.871, b=1.909, g=1.927, bire=0.0560, 2V(Calc)=66, 2V(Meas)=67. Dispersion very strong, r > v.
 

Calculated Properties of Chenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.11 gm/cc
note: Specific Gravity of Chenite =5.98 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.15
Boson Index = 0.85
Help on Photoelectric: Photoelectric: PEChenite =1,257.76 barns/electron
U=PEChenite x rElectron Density=6,427.80 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chenite is Not Radioactive
 

Chenite Classification
Help on Dana Class: Dana Class: 30.01.16.01 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01)where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.16)Dana Group
 
30.01.16.01 Chenite Pb4Cu(SO4)2(OH)6 P1 1
Help on Strunz Class: Strunz Class: 07.BC.70 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BC -With medium-sized and large cations
 
07.BC.70 Chenite Pb4Cu(SO4)2(OH)6 P1 1
 

Other Chenite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Chenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Chenite Specimen Label here :

Chenite

Pb4Cu(SO4)2(OH)6
Dana No: 30.01.16.01 Strunz No: 07.BC.70
Locality:

 

Notes: