Zaherite  Mineral Data

Zaherite Mineral Data

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

Advertisment
Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.
Your premier supplier of quality mineral specimens from Southern Africa and the world at large
Adamsminerals.com- Online mineral store front for mineral collectors
Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

General Zaherite Information

Help on Chemical  Formula: Chemical Formula: Al12(SO4)5(OH)26•20H20
Help on Composition: Composition: Molecular Weight = 1,606.59 gm
   Aluminum  20.15 %  Al   38.08 % Al2O3
   Hydrogen   4.14 %  H    37.00 % H2O
   Sulfur     9.98 %  S    24.92 % SO3
   Oxygen    65.73 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al12(SO4)5(OH)26•20(H2O)
Help on Environment: Environment: In a massive kaolinite-boehmite rock.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Salt Range, Pakistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for M. A. Zaher, Geological Survey of Bangladesh, who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Zaherite Say ZAHERITE
 

Zaherite Image

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

Zaherite

Comments: Gray to white translucent prismatic to massive zaherite comprising portion of rock.
Location: Pella, Namaqualand, Northern Cape Province, South Africa. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zaherite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9496:1:0.1938
Help on Cell Dimensions: Cell Dimensions: a = 18.475, b = 19.454, c = 3.771, Z = 1; alpha = 95.24°, beta = 91.48°, gamma = 80.24° V = 1,329.70 Den(Calc)= 2.01
Help on Crystal System: Crystal System: TriclinicSpace Group: P1 or P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 18.12(1), 3.22(0.8), 4.61(0.8),
 

Physical Properties of Zaherite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: White, Light bluish green.
Help on Density: Density: 2.007 - 2.011, Average = 2
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Zaherite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2479,KPDmeas= 0.2481,KC= 0.2487
Ncalc = 1.5
Help on Optical Data: Optical Data: Biaxial (+), a=1.498, b=1.4981, g=1.499, bire=0.0010, 2V(Calc)=38, 2V(Meas)=moderate.
 

Calculated Properties of Zaherite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.08 gm/cc
note: Specific Gravity of Zaherite =2.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0010701619
Boson Index = 0.9989298381
Help on Photoelectric: Photoelectric: PEZaherite = 1.29 barns/electron
U=PEZaherite x rElectron Density= 2.67 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zaherite is Not Radioactive
 

Zaherite Classification

Help on  Dana Class: Dana Class: 31.10.03.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.10)miscellaneous
  (31.10.03)Dana Group
 
31.10.03.01 Zaherite Al12(SO4)5(OH)26•20H20 P1 or P1 Tri
Help on  Strunz Class: Strunz Class: 07.DE.65 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DE -With only medium-sized cations; unclassified
 
07.DE.65 Zaherite Al12(SO4)5(OH)26•20H20 P1 or P1 Tri
 

Other Zaherite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Zaherite :
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

Search for Zaherite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Zaherite :

A Bijoux Google Search for Zaherite
Adam's Minerals Google Search for Zaherite
Cape Minerals Google Search for Zaherite
Dakota Matrix Minerals Google Search for Zaherite
Excalibur Mineral Corp. Google Search for Zaherite
Exceptional Minerals Google Search for Zaherite
John Betts Fine Minerals Search for Zaherite
McDougall Minerals Google Search for Zaherite
Mineral News Website Link
Rock and Mineral Shows Google Search for Zaherite
Weinrich Minerals, Inc. Google Search for Zaherite

Ask about Zaherite 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 Zaherite Specimen Label here :

Zaherite

Al12(SO4)5(OH)26•20H20
Dana No: 31.10.03.01 Strunz No: 07.DE.65
Locality:

 

Notes: