Mineralogy Database

Boleite Mineral Data

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General Boleite Information

Help on Chemical  Formula: Chemical Formula: KPb26Ag9Cu24Cl62(OH)48
Help on Composition: Composition: Molecular Weight = 10936.64 gm
   Potassium   0.36 %  K     0.43 % K2O
   Copper     13.94 %  Cu   15.70 % Cu2O
   Silver      8.88 %  Ag    9.54 % Ag2O
   Hydrogen    0.44 %  H     3.95 % H2O
   Lead       49.26 %  Pb   53.06 % PbO
   Chlorine   20.10 %  Cl   20.10 % Cl
                -   %   Cl   -4.54 % -O=Cl2   
   Oxygen      7.02 %  O
             ______        ______ 
             100.00 %       98.24 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KAg9Cu24Pb26Cl62(OH)48
Help on Environment: Environment: Sedimentary copper deposits. The fugitive presence of K in the formula was determined by microprobe.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1891
Help on Locality: Locality: Boleo, Baja California, Mexico. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after is locality.
Help on Name Pronunciation: Name Pronunciation: Boleite Say BOLEITE
Help on Synonym: Synonym: ICSD 18002
  PDF 27-1206

Boleite Image

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Comments: Floater crystal of deep, inky blue boleite with interpenetration twinning.
Location: Amelia Mine, Santa Rosalia, Baja California, Mexico. Scale: 0.7 cm.
© John Veevaert

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  Cumengite   Boleite

Comments: Inky blue cumengite "sixling" epitaxially overgrown on boleite.
Location: Amelia mine, Santa Rosalia, Baja California Sur, Mexico. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Boleite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 15.29, Z = 1; V = 3,574.56 Den(Calc)= 5.08
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.415(1), 3.821(0.8), 2.702(0.6),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

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

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Physical Properties of Boleite

Help on Cleavage: Cleavage: {001} Perfect, {101} Good
Help on Color: Color: Indigo blue, Light blue.
Help on Density: Density: 4.8 - 5.1, Average = 4.94
Help on Diaphaneity: Diaphaneity: Transparent to subtranslucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Pseudo Cubic - Crystals show a cubic outline.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: light green

Optical Properties of Boleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2067,KPDmeas= 0.2121,KC= 0.2011
Ncalc = 1.97 - 2.03
Help on Optical Data: Optical Data: Isotropic, n=2.05.

Calculated Properties of Boleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.42 gm/cc
note: Specific Gravity of Boleite =5.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.1
Boson Index = 0.9
Help on Photoelectric: Photoelectric: PEBoleite = 900.94 barns/electron
U=PEBoleite x relectron=3,980.61 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4.47 (Gamma Ray American Petroleum Institute Units)
Concentration of Boleite per GRapi unit = 22.36 (%)

Estimated Radioactivity from Boleite - barely detectable


Boleite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.06)where Am Bn (O,OH)p Xq
  (10.06.06)Dana Group Boleite KPb26Ag9Cu24Cl62(OH)48 P m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 03.DB.15 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DB -With Pb, Cu, etc.
03.DB.15 Boleite KPb26Ag9Cu24Cl62(OH)48 P m3m 4/m 3 2/m

Other Boleite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(AmMin, v 86, p 770) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Boleite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Glendale Community College
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info

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Dana No: Strunz No: 03.DB.15





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