Burckhardtite Mineral Data

Burckhardtite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Newest Minerals] [Mineral Auctions] [Mineral Gallery]
The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame
Visa, PayPal, and Mastercard are Welcomed


General Burckhardtite Information

Help on Chemical Formula: Chemical Formula: Pb2(Fe+++,Mn+++)Te++++(AlSi3O10)O2(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 934.87 gm
   Manganese   1.47 %  Mn    2.11 % Mn2O3
   Aluminum    2.89 %  Al    5.45 % Al2O3
   Iron        4.48 %  Fe    6.41 % Fe2O3
   Silicon     9.01 %  Si   19.28 % SiO2
   Tellurium  13.65 %  Te   17.07 % TeO2
   Hydrogen    0.22 %  H     1.93 % H2O
   Lead       44.33 %  Pb   47.75 % PbO
   Oxygen     23.96 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2Fe3+0.75Mn3+0.25TeAlSi3O12(OH)2
Help on Environment: Environment: Secondary mineral intergrown with dickite.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Moctezuma mine, Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Carlos Burckhardt (1869-19350, Swiss geologist working in Mexico.
Help on Name Pronunciation: Name Pronunciation: Burckhardtite + Pronunciation Say BURCKHARDTITE
 

Burckhardtite Image

Click Here for Larger Burckhardtite Image in a New Browser Window Images:
Click Here for Larger Burckhardtite Image

Burckhardtite   Moctezumite

Comments: Pink crusts of burckhardtite with yellow crystalline moctezumite on quartz.
Location: Moctezuma Mine, Moctezuma, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Burckhardtite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5763:1:1.4214
Help on Cell Dimensions: Cell Dimensions: a = 5.21, b = 9.04, c = 12.85, Z = 2; beta = 90° V = 605.21 Den(Calc)= 5.13
Help on Crystal System: Crystal System: MonoclinicSpace Group: Cm or C 2/m (pseudo-HEX)
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.11(1), 3.7(0.9), 2.6(0.7),
 

Physical Properties of Burckhardtite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Violet red, Carmine red, Pink.
Help on Density: Density: 4.96
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Adamantine - Pearly
Help on Streak: Streak: light red
 

Optical Properties of Burckhardtite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.071 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.102 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1637,KPDmeas= 0.1694,KC= 0.1823
Ncalc = 1.9 - 1.94
Help on Optical Data: Optical Data: Biaxial (-), a=1.82, b=1.85, g=1.85, bire=0.0300, 2V(Calc)=0, 2V(Meas)=0-5.
Help on Pleochroism (x): Pleochroism (x): pale magenta.
Help on Pleochroism (y): Pleochroism (y): carmine red.
Help on Pleochroism (z): Pleochroism (z): carmine red.
 

Calculated Properties of Burckhardtite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.36 gm/cc
note: Specific Gravity of Burckhardtite =4.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.11
Boson Index = 0.89
Help on Photoelectric: Photoelectric: PEBurckhardtite = 824.42 barns/electron
U=PEBurckhardtite x rElectron Density=3,593.24 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Burckhardtite is Not Radioactive
 

Burckhardtite Classification
Help on Dana Class: Dana Class: 78.05.03.01 (78)Unclassified silicates
  (78.05)possible phyllosilicates
  (78.05.03)Dana Group
 
78.05.03.01 Burckhardtite Pb2(Fe,Mn)Te(AlSi3O10)O2(OH)2•(H2O) Cm or C 2/m (pseudo-HEX) Mono
Help on Strunz Class: Strunz Class: 09.EC.70 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.70 Burckhardtite Pb2(Fe,Mn)Te(AlSi3O10)O2(OH)2•(H2O) Cm or C 2/m (pseudo-HEX) Mono
 

Other Burckhardtite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Burckhardtite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Burckhardtite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Burckhardtite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Burckhardtite Mineral Data :

Ask about Burckhardtite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Burckhardtite

Pb2(Fe+++,Mn+++)Te++++(AlSi3O10)O2(OH)2•(H2O)
Dana No: 78.05.03.01 Strunz No: 09.EC.70
Locality:

 

Notes: