Mineralogy Database

Clinomimetite Mineral Data

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General Clinomimetite Information

Help on Chemical  Formula: Chemical Formula: Pb5(AsO4)3Cl
Help on Composition: Composition: Molecular Weight = 1,488.21 gm
   Arsenic   15.10 %  As   23.17 % As2O5
   Lead      69.61 %  Pb   74.99 % PbO
   Chlorine   2.38 %  Cl    2.38 % Cl
               -   %   Cl   -0.54 % -O=Cl2   
   Oxygen    12.90 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb5(AsO4)3Cl
Help on Environment: Environment: Secondary mineral in the oxidized zone of some base-metal deposits. Dimorphous with mimetite.
Help on IMA Status: IMA Status: Approved IMA 1991
Help on Locality: Locality: Johanngeorgenstadt, Saxony, Germay. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its monoclinic structure and relation to mimetite.
Help on Synonym: Synonym: ICSD 69961
  PDF 47-1808

Clinomimetite Image

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Comments: Yellow crystals of clinomimetite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Size of the largest crystal 12 mm.
© Thomas Witzke / Abraxas-Verlag

Clinomimetite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5001:1:0.366
Help on Cell Dimensions: Cell Dimensions: a = 10.1891, b = 20.3723, c = 7.4564, Z = 4; beta = 119.8827° V = 1,341.99 Den(Calc)= 7.37
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/b
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.06(1), 3.01(0.95), 2.96(0.65),

Physical Properties of Clinomimetite

Help on Cleavage: Cleavage: None
Help on Color: Color: Greenish yellow, White, Wax yellow.
Help on Density: Density: 7.36
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Subadamantine
Help on Streak: Streak: white

Optical Properties of Clinomimetite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.074 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.073 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1554,KPDmeas= 0.1556,KC= 0.1448
Ncalc = 2.07
Help on Optical Data: Optical Data: Biaxial (-), b=2.14-2.15, 2V(Meas)=8.

Calculated Properties of Clinomimetite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.16 gm/cc
note: Specific Gravity of Clinomimetite =7.37 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.15
Boson Index = 0.85
Help on Photoelectric: Photoelectric: PEClinomimetite =1,290.30 barns/electron
U=PEClinomimetite x rElectron Density=7,949.00 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinomimetite is Not Radioactive

Clinomimetite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.08)where (A)5 (XO4)3 Zq
  (41.08.06)Clinomimetite Group Clinomimetite Pb5(AsO4)3Cl P 21/b 2/m Apatite-(CaOH)-M! (Ca,Na)5[(P,S)O4]3(OH,Cl) P 21/b 2/m
Help on  Strunz Class: Strunz Class: 08.BN.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BN -With only large cations, (OH, etc.):RO4 = 0.33:1
08.BN.05 Alforsite Ba5(PO4)3Cl P 63/m 6/m
08.BN.05 Apatite* Ca5(PO4)3(OH,F,Cl) P 63/m 6/m
08.BN.05 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
08.BN.05 Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
08.BN.05 Fermorite (Ca,Sr)5(AsO4,PO4)3(OH) P 63/m 6/m
08.BN.05 Deloneite-(Ce)! NaCa2SrCe(PO4)3F P 3 3
08.BN.05 Johnbaumite Ca5(AsO4)3(OH) P 63/m,P 63 Hex
08.BN.05 Apatite-(CaOH) Ca5(PO4)3(OH) P 63/m 6/m
08.BN.05 Apatite-(CaCl) Ca5(PO4)3Cl P 63/m 6/m
08.BN.05 Carbonate-fluorapatite? Ca5(PO4,CO3)3F P 63/m 6/m
08.BN.05 Carbonate-hydroxylapatite? Ca5(PO4,CO3)3(OH) P 63/m 6/m
08.BN.05 Clinomimetite Pb5(AsO4)3Cl P 21/b 2/m
08.BN.05 Apatite-(CaF) Ca5(PO4)3F P 63/m 6/m
08.BN.05 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
08.BN.05 Hedyphane Ca2Pb3(AsO4)3Cl P 63/m 6/m
08.BN.05 Mimetite Pb5(AsO4)3Cl P 63/m 6/m
08.BN.05 Apatite-(SrOH) (Sr,Ca)5(PO4)3(F,OH) P 63/m 6/m
08.BN.05 Morelandite (Ba,Ca,Pb)5(AsO4,PO4)3Cl P 63/m,P 63 Hex
08.BN.05 Pyromorphite Pb5(PO4)3Cl P 63/m 6/m
08.BN.05 Vanadinite Pb5(VO4)3Cl P 63/m 6/m
08.BN.05 Apatite-(CaOH)-M! (Ca,Na)5[(P,S)O4]3(OH,Cl) P 21/b 2/m
08.BN.05 IMA2008-068! Ca2Pb3(PO4)3F P 63/m 6/m
08.BN.05 Svabite Ca5(AsO4)3F P 63/m 6/m
08.BN.05 Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3
08.BN.05 Turneaureite Ca5[(As,P)O4]3Cl P 63/m 6/m
08.BN.05 Phosphohedyphane! Ca2Pb3(PO4)3Cl P 63/m 6/m
08.BN.05 IMA2008-009! Sr5(PO4)3F P 63/m 6/m 2/m 2/m
08.BN.05 Hydroxylpyromorphite! Pb5(PO4)3OH P 63/m 6/m

Other Clinomimetite Information

Help on References: References: NAME( AntBidBlaNic4) 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 Clinomimetite :
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.BN.05





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