Lautenthalite Mineral Data + Say LAUTENTHALITE


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General Lautenthalite Information

Help on Chemical  Formula: Chemical Formula: PbCu++4(OH)6(SO4)2·3(H2O)
Help on Composition: Composition: Molecular Weight = 809.60 gm
   Copper    31.40 %  Cu   39.30 % CuO
   Hydrogen   1.49 %  H    13.35 % H2O
   Lead      25.59 %  Pb   27.57 % PbO
   Sulfur     7.92 %  S    19.78 % SO3
   Oxygen    33.60 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbCu4(OH)6(SO4)2·3(H2O)
Help on IMA Status: IMA Status: Approved IMA 1993
Help on Locality: Locality: Lautenthal, Harz Mts, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA1983-029
 

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Lautenthalite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =3.5831:1:4.2119
Help on Cell Dimensions: Cell Dimensions: a = 21.642, b = 6.04, c = 25.44, Z = 8; beta = 108.2° V = 3,159.09 Den(Calc)= 3.40
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.14(1), 3.4(0.8), 4.53(0.6),
 

Physical Properties of Lautenthalite

Help on Cleavage: Cleavage: [???] Good
Help on Color: Color: Blue green, Green, Greenish blue.
Help on Density: Density: 3.84
Help on Diaphaniety: Diaphaniety: Transparent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Lautenthalite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.116 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2053,KPDmeas= 0.1818,KC= 0.1839
Help on Optical Data: Optical Data: Biaxial (-), a=1.659, b=1.703, g=1.732, bire=0.0730, 2V(Calc)=76, 2V(Meas)=78-79.
 

Calculated Properties of Lautenthalite

Help on Electron Density: Electron Density:

relectron=3.59 gm/cc
note: rLautenthalite =3.84 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.05731
Boson Index = 0.94269
Help on Photoelectric: Photoelectric:

PELautenthalite = 435.45 barns/electron
U=PELautenthalite x relectron=1,561.41 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Lautenthalite is Not Radioactive

 

Lautenthalite Classification

Help on  Dana Class: Dana Class: 31.6.1.2 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.6)where (A+ B++)5 (XO4)2 Zq·x(H2O)
  (31.6.1)Dana Group
 
31.6.1.1 Devilline CaCu4(SO4)2(OH)6·3(H2O) P 21/c 2/m
 
31.6.1.2 Lautenthalite PbCu4(OH)6(SO4)2·3(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: VI/D.19-32 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/D - Water-bearing sulfates with unfamiliar anions. Cations of medium and very big size
  VI/D.19 - Devilline - Serperite - Rapidcreekite series
 
VI/D.19-05 Niedermayrite! Cu4Cd(SO4)2(OH)6·4(H2O) P 21/m 2/m
 
VI/D.19-10 Devilline CaCu4(SO4)2(OH)6·3(H2O) P 21/c 2/m
 
VI/D.19-20 Serpierite Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O) C 2/c 2/m
 
VI/D.19-30 Orthoserpierite Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O) P ca21 mm2
 
VI/D.19-32 Lautenthalite PbCu4(OH)6(SO4)2·3(H2O) P 21/c 2/m
 
VI/D.19-35 Arzrunite Cu4Pb2SO4(OH)4Cl6·2(H2O) Unk Ortho
 
VI/D.19-40 Tatarskite Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7(H2O) Unk Ortho
 
VI/D.19-50 Tanteuxenite-(Y) (Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6 Pcan 2/m 2/m 2/m
 

Other Lautenthalite Information

Help on References: References: PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)
Help on See Also: See Also: Links to other databases for Lautenthalite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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Lautenthalite

PbCu++4(OH)6(SO4)2·3(H2O)
Dana No: 31.6.1.2 Strunz No: VI/D.19-32
Locality:

 

Notes:

 

 
   
 
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