Mineralogy Database

Mimetite Mineral Data

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General Mimetite 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 lead ores.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1835
Help on Locality: Locality: Treue Freundschaft Mine, Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek mimethes - "imitator" , because of its resemblance to pyromorphite.
Help on Name Pronunciation: Name Pronunciation: Mimetite Say MIMETITE
Help on Synonym: Synonym: Arsenopyromorphite
  Campylite
  ICSD 64826
  Mimetesite
  PDF 19-683
  Prixite
 

Mimetite Image

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  Duftite-alpha   Mimetite

Comments: Mimetite crystals are replaced by Duftite-alpha on a gossanous matrix.
Location: Mt. Bonnie Mine, Northern Territory, Australia. Scale: Crystal size to 3mm.
© John Veevaert

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  Mimetite   Cerussite

Comments: Creamy white crystal of cerussite measuring 11 x 22 mm in size nestled nicely in a vug which is lined by bright-yellow, lustrous, prismatic mimetite crystals. The mimetites average 5 mm in length.
Location: Tsumeb mine, Tsumeb, Namibia. Scale: 3.5 x 4.5 x 2.5 cm.
© Dan Weinrich

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  Mimetite

Comments: Crystals of tan colored Mimetite. The largest crystal is 1 cm across.
Location: Mt. Bonnie Mine, Northen Territory, Austalia. Scale: 2.9 x 1.7 cm.
© John Veevaert

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  Plumbogummite   Mimetite

Comments: White, fuzzy aggregates of plumbogummite covering lime green mimetite (campylite) crystals.
Location: Caldbeck Fells, Cumbria, England. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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  Mimetite   Wulfenite

Comments: Gemmy, pale yellow mimetite crystal with brownish-orange wulfenite. Former James and Dawn Minette Collection.
Location: Gem Pocket 1971, Tsumeb, Namibia. Scale: 2 x 1 x 1 cm.
© Rob Lavinsky

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  Joelbruggerite   Mimetite

Comments: SEM image of a barrel-shaped jo├źlbruggerite crystal lanced by acicular mimetite. (AmMin, v94:1012).
Location: Black Pine mine, 14.5 km northwest of Philipsburg, Granite County, Montana, USA. Scale: Crystal Size 30 µm across.
© American Mineralogist

Mimetite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.71128
Help on Cell Dimensions: Cell Dimensions: a = 10.46, c = 7.44, Z = 2; V = 704.96 Den(Calc)= 7.01
Help on Crystal System: Crystal System: Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P 63/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.06(1), 3.01(0.95), 2.96(0.65),
Help on Forms: Forms:

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Drag2 - Resize

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I - Indicies
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Help on Above

Forms: ( 1 1 1) ( 1 0 1) ( 0 1 0) ( 0 0 1)

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Physical Properties of Mimetite

Help on Cleavage: Cleavage: {1011} Imperfect
Help on Color: Color: White, Yellow, Orange, Brown, Red.
Help on Density: Density: 7.1 - 7.24, Average = 7.17
Help on Diaphaneity: Diaphaneity: Subtransparent to translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Globular - Spherical, or nearly so, rounded forms (e.g. wavellite).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Reniform - "Kidney like" in shape (e.g.. hematite).
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luminescence: Luminescence: Fluorescent, Short UV=orange, Long UV=orange.
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: white
 

Optical Properties of Mimetite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.095 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.12 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1621,KPDmeas= 0.1585,KC= 0.1448
Ncalc = 2.01 - 2.05
Help on Optical Data: Optical Data: Uniaxial (-), e=2.129, w=2.144, bire=0.0150.
 

Calculated Properties of Mimetite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.99 gm/cc
note: Specific Gravity of Mimetite =7.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.15
Boson Index = 0.85
Help on Photoelectric: Photoelectric: PEMimetite =1,290.30 barns/electron
U=PEMimetite x rElectron Density=7,733.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mimetite is Not Radioactive
 

Mimetite Classification

Help on  Dana Class: Dana Class: 41.08.04.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.08)where (A)5 (XO4)3 Zq
  (41.08.04)Pyromorphite Group
 
41.08.04.01 Pyromorphite Pb5(PO4)3Cl P 63/m 6/m
 
41.08.04.02 Mimetite Pb5(AsO4)3Cl P 63/m 6/m
 
41.08.04.03 Vanadinite Pb5(VO4)3Cl P 63/m 6/m
 
41.08.04.04 Hydroxylpyromorphite! Pb5(PO4)3OH P 63/m 6/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 Mimetite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Mason68)
Help on See Also: See Also: Links to other databases for Mimetite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - Franklin Minerals(Dunn)
9 - GeoScienceWorld
10 - Glendale Community College
11 - Google Images
12 - Google Scholar
13 - Handbook of Mineralogy (MinSocAm)
14 - Handbook of Mineralogy (UofA)
15 - HyperPhysics
16 - MinDAT
17 - Mineral and Gemstone Kingdom
18 - Mineralienatlas (Deutsch)
19 - Online Mineral Museum
20 - Philatelic Mineralogy
21 - QUT Mineral Atlas
22 - Ruff.Info
23 - WWW-MINCRYST
24 - YupRocks
25 - theimage

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

Mimetite

Pb5(AsO4)3Cl
Dana No: 41.08.04.02 Strunz No: 08.BN.05
Locality:

 

Notes:

 

 
   
 


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