Lonecreekite Mineral Data

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



[On-Line Catalogue] [On-Line Auctions] [eBay] [Contact Us] [Policies]
We specialize in fine European and Asian Mineral Specimens
Heliodor is based in Prague, Czech Republic


General Lonecreekite Information

Help on Chemical Formula: Chemical Formula: (NH4)(Fe+++,Al)(SO4)2•12(H2O)
Help on Composition: Composition: Molecular Weight = 474.98 gm
   Aluminum   1.42 %  Al    2.68 % Al2O3
   Iron       8.82 %  Fe   12.61 % Fe2O3
   Hydrogen   0.85 %  H      -   % Calc as (NH4)2O
   Hydrogen   5.09 %  H    45.51 % H2O
   Sulfur    13.50 %  S    33.71 % SO3
   Nitrogen   2.95 %  N     5.48 % (NH4)2O
   Oxygen    67.37 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)Fe3+0.75Al0.25(SO4)2•12(H2O)
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Lone Creek Fall cave, near Sabie, eastern Transvaal, South Africa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Lonecreekite + Pronunciation Say LONECREEKITE
 

Search for Lonecreekite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Lonecreekite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 12.302, Z = 4; V = 1,861.78 Den(Calc)= 1.69
Help on Crystal System: Crystal System: Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.356(1), 7.12(0.7), 3.289(0.65),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

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

Warning: this large pop-up is very compute intensive and may not work well with some computers.
 

Physical Properties of Lonecreekite

Help on Color: Color: Colorless.
Help on Density: Density: 1.693
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Lonecreekite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.099 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.101 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2858,KPDmeas= 0.2853,KC= 0.2597
Ncalc = 1.44
Help on Optical Data: Optical Data: Isotropic, n=1.483.
 

Calculated Properties of Lonecreekite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.78 gm/cc
note: Specific Gravity of Lonecreekite =1.69 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PELonecreekite = 3.44 barns/electron
U=PELonecreekite x rElectron Density= 6.13 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lonecreekite is Not Radioactive
 

Lonecreekite Classification
Help on Dana Class: Dana Class: 29.05.05.04 (29)Hydrated Acid and Sulfates
  (29.05)where A B (XO4)2 · x(H2O)
  (29.05.05)Alum Group
 
29.05.05.01 Alum-(K) KAl(SO4)2•12(H2O) P a3 2/m 3
 
29.05.05.02 Alum-(Na) NaAl(SO4)2•12(H2O) P a3 2/m 3
 
29.05.05.03 Tschermigite (NH4)Al(SO4)2•12(H2O) P a3 2/m 3
 
29.05.05.04 Lonecreekite (NH4)(Fe,Al)(SO4)2•12(H2O) P a3 2/m 3
 
29.05.05.05 Lanmuchangite! TlAl(SO4)2•12(H2O) P a3 2/m 3
Help on Strunz Class: Strunz Class: 07.CC.20 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.20 Lonecreekite (NH4)(Fe,Al)(SO4)2•12(H2O) P a3 2/m 3
 
07.CC.20 Alum-(K) KAl(SO4)2•12(H2O) P a3 2/m 3
 
07.CC.20 Alum-(Na) NaAl(SO4)2•12(H2O) P a3 2/m 3
 
07.CC.20 Lanmuchangite! TlAl(SO4)2•12(H2O) P a3 2/m 3
 
07.CC.20 Tschermigite (NH4)Al(SO4)2•12(H2O) P a3 2/m 3
 

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

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

Visit our Advertisers for Lonecreekite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

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 Lonecreekite Mineral Data :

Ask about Lonecreekite 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 Lonecreekite Specimen Label here :

Lonecreekite

(NH4)(Fe+++,Al)(SO4)2•12(H2O)
Dana No: 29.05.05.04 Strunz No: 07.CC.20
Locality:

 

Notes: