Lanarkite Mineral Data + Say LANARKITE


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General Lanarkite Information

Help on Chemical  Formula: Chemical Formula: Pb2(SO4)O
Help on Composition: Composition: Molecular Weight = 526.46 gm
   Lead    78.71 %  Pb   84.79 % PbO
   Sulfur   6.09 %  S    15.21 % SO3
   Oxygen  15.20 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2(SO4)O
Help on Environment: Environment: Secondary mineral developed in galena ores.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1832
Help on Locality: Locality: Susanna Mine, Leadhills, Lanarkshire, Scotland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
Help on Synonym: Synonym: ICSD 29268
  PDF 33-1486
 

Lanarkite Image

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Lanarkite

Comments: White, acicular spray of lanarkite on matrix.
Location: Meadowfoot smelter, Wanlockhead, Lanarkshire, Scotland. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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Lanarkite

Comments: Cleaved crystals of greenish beige lanakite on matrix.
Location: Leadhills, Scotland. Scale: Picture size 2 cm.
© Dave Barthelmy

Lanarkite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.4131:1:1.2404
Help on Cell Dimensions: Cell Dimensions: a = 13.746, b = 5.6964, c = 7.066, Z = 4; beta = 115.79° V = 498.18 Den(Calc)= 7.02
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.3426(1), 2.9614(0.8), 2.848(0.45),
Help on Forms: Forms:

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Forms: [ 1 1 1] [ 1 1 0] [ 2 0 1] [ 4 0 1] [ 2 0 1] [ 0 0 1]

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Physical Properties of Lanarkite

Help on Cleavage: Cleavage: [201] Perfect, [401] Indistinct, [201] Indistinct
Help on Color: Color: Greenish white, Gray, Gray white, Yellow, Light yellow.
Help on Density: Density: 6.92
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Fluorescent.
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: white
 

Optical Properties of Lanarkite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.024 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1411,KPDmeas= 0.1431,KC= 0.1397
Help on Optical Data: Optical Data: Biaxial (-), a=1.928, b=2.007, g=2.036, bire=0.1080
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Lanarkite

Help on Electron Density: Electron Density:

relectron=5.87 gm/cc
note: rLanarkite =7.02 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.17448
Boson Index = 0.82552
Help on Photoelectric: Photoelectric:

PELanarkite =1,446.22 barns/electron
U=PELanarkite x relectron=8,485.07 barns/cc.

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

Lanarkite is Not Radioactive

 

Lanarkite Classification

Help on  Dana Class: Dana Class: 30.2.1.1 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.2)where (A B)2 XO4 Zq
  (30.2.1)Dana Group
 
30.2.1.1 Lanarkite Pb2(SO4)O C 2/m 2/m
Help on  Strunz Class: Strunz Class: VI/B.13-10 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/B - Waterfree sulfates [SO4]2- with unfamiliar anions. mostly big cations
  VI/B.13 - Lanarkite - Susannite series
 
VI/B.13-10 Lanarkite Pb2(SO4)O C 2/m 2/m
 
VI/B.13-20 Olsacherite Pb2(SeO4)(SO4) P 2212 2 2 2
 
VI/B.13-30 Grandreefite Pb2SO4F2 A2/a 2/m
 
VI/B.13-40 Pseudograndreefite Pb6SO4F1O F 222 2 2 2
 
VI/B.13-50 Leadhillite Pb4(SO4)(CO3)2(OH)2 P 21/a 2/m
 
VI/B.13-60 Macphersonite Pb4(SO4)(CO3)2(OH)2 Pcab 2/m 2/m 2/m
 
VI/B.13-70 Susannite Pb4(SO4)(CO3)2(OH)2 R 3 3
 

Other Lanarkite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Lanarkite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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Lanarkite

Pb2(SO4)O
Dana No: 30.2.1.1 Strunz No: VI/B.13-10
Locality:

 

Notes:

 

 
   
 
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