Khademite Mineral Data + Say KHADEMITE

General Khademite Information

Help on Chemical  Formula: Chemical Formula: Al(SO4)F·5(H2O)
Help on Composition: Composition: Molecular Weight = 232.12 gm
   Aluminum  11.62 %  Al   21.96 % Al2O3
   Hydrogen   4.34 %  H    38.81 % H2O
   Sulfur    13.81 %  S    34.49 % SO3
   Oxygen    62.03 %  O
   Fluorine   8.18 %  F     8.18 % F
               -   %  F    -3.45 % -O=F2
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al(SO4)F·5(H2O)
Help on Environment: Environment: Post mine efflorescence.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Lone Pine mine, Catron County, New Mexico, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for N. Khadem, (b1910), director, Geological Survey of Iran.
Help on Synonym: Synonym: ICSD 41562
  PDF 26-1011
 

Khademite Image

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

Khademite

Comments: Pale blue botryoidal khademite on matrix.
Location: Bergmann Liegendes, Rammelsberg, Harz Mountains, Niedersachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Khademite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8569:1:0.8342
Help on Cell Dimensions: Cell Dimensions: a = 11.181, b = 13.048, c = 10.885, Z = 8; V = 1,588.01 Den(Calc)= 1.94
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pcab
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.247(1), 4.179(0.7), 2.73(0.6),
Click Here for Large Khademite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Bachet B , Cesbron F , Chevalier R , Bulletin de Mineralogie , 104 (1981) p.19-22, Structure cristalline de la khademite Al(SO4)F*5H2O

 

Physical Properties of Khademite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.942
Help on Diaphaniety: Diaphaniety: Transparent
Help on Habit: Habit: Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Streak: Streak: white
 

Optical Properties of Khademite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2383,KPDmeas= 0.2381,KC= 0.2423
Help on Optical Data: Optical Data: Biaxial (-), a=1.44, b=1.46, g=1.487, bire=0.0470, 2V(Calc)=84, 2V(Meas)=68.
 

Calculated Properties of Khademite

Help on Electron Density: Electron Density:

relectron=2.01 gm/cc
note: rKhademite =1.94 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00134
Boson Index = 0.99866
Help on Photoelectric: Photoelectric:

PEKhademite = 1.32 barns/electron
U=PEKhademite x relectron= 2.64 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Khademite is Not Radioactive

 

Khademite Classification

Help on  Dana Class: Dana Class: 31.9.11.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.9)where (A+ B++) (XO4) Zq·x(H2O)
  (31.9.11)Dana Group
 
31.9.11.1 Khademite Al(SO4)F·5(H2O) Pcab 2/m 2/m 2/m
 
31.9.11.2 Rostite AlSO4(OH,F)·5(H2O) Pcba 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: VI/D.06-20 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size
  VI/D.06 - Aluminite series, Jurbanite - Zaherite
 
VI/D.06-10 Jurbanite Al(SO4)(OH)·5(H2O) P 21/n 2/m
 
VI/D.06-20 Khademite Al(SO4)F·5(H2O) Pcab 2/m 2/m 2/m
 
VI/D.06-20* Rostite AlSO4(OH,F)·5(H2O) Pcba 2/m 2/m 2/m
 
VI/D.06-30 Meta-aluminite Al2(SO4)(OH)4·5(H2O) P 21/c ? 2/m
 
VI/D.06-40 Aluminite Al2(SO4)(OH)4·7(H2O) P 21/c 2/m
 
VI/D.06-50 Basaluminite Al4(SO4)(OH)10·5(H2O) P 21 2
 
VI/D.06-60 Felsobanyaite Al4(SO4)(OH)10·5(H2O) Unk Hex
 
VI/D.06-70 Hydrobasaluminite Al4(SO4)(OH)10·12-36(H2O) Unk. Mono
 
VI/D.06-80 Zaherite Al12(SO4)5(OH)26·20H20 P1 or P1 Tri
 

Other Khademite Information

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

Search for Khademite using:

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

Visit our Advertisers for Khademite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Khademite Mineral Data :

Ask about Khademite 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 Español

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

Khademite

Al(SO4)F·5(H2O)
Dana No: 31.9.11.1 Strunz No: VI/D.06-20
Locality:

 

Notes:

 

 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links