Mendozite Mineral Data

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


General Mendozite Information

Help on Chemical Formula: Chemical Formula: NaAl(SO4)2•11(H2O)
Help on Composition: Composition: Molecular Weight = 440.27 gm
   Sodium     5.22 %  Na    7.04 % Na2O
   Aluminum   6.13 %  Al   11.58 % Al2O3
   Hydrogen   5.04 %  H    45.01 % H2O
   Sulfur    14.57 %  S    36.37 % SO3
   Oxygen    69.05 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaAl(SO4)2•11(H2O)
Help on Environment: Environment: Oxidation of pyrite in reaction with clays,
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1868
Help on Locality: Locality: "San Juan, near Mendoza" [probably meaning Mendoza Province; the original occurrence appears lost.], Argintina. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Mendozite + Pronunciation Say MENDOZITE
Help on Synonym: Synonym: ICSD 26005
  PDF 22+475
 

Mendozite Image

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

Mendozite

Comments: White chalky massive mendozite.
Location: Gold Bottom Mine, Inyo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mendozite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.388:1:0.911
Help on Cell Dimensions: Cell Dimensions: a = 21.75, b = 9.108, c = 8.298, Z = 4; beta = 92.47° V = 1,642.30 Den(Calc)= 1.78
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.5(1), 4.76(0.85), 4.58(0.65),
Click Here for Large Mendozite 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


Fang J H , Robinson P D , American Mineralogist , 57 (1972) p.1081-1088, Crystal structures and mineral chemistry of double-salt hydrates: II. The, crystal structure of mendozite, NaAl(SO4)2.11H2O

 

Physical Properties of Mendozite

Help on Cleavage: Cleavage: {100} Good, {001} Indistinct, {010} Indistinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.73 - 1.765, Average = 1.74
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Mendozite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.028 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2571,KPDmeas= 0.2619,KC= 0.2548
Ncalc = 1.44 - 1.45
Help on Optical Data: Optical Data: Biaxial (-), a=1.449, b=1.461, g=1.463, bire=0.0140, 2V(Calc)=44, 2V(Meas)=56.
 

Calculated Properties of Mendozite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.86 gm/cc
note: Specific Gravity of Mendozite =1.78 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014314753
Boson Index = 0.9985685247
Help on Photoelectric: Photoelectric: PEMendozite = 1.26 barns/electron
U=PEMendozite x rElectron Density= 2.34 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mendozite is Not Radioactive
 

Mendozite Classification
Help on Dana Class: Dana Class: 29.05.04.01 (29)Hydrated Acid and Sulfates
  (29.05)where A B (XO4)2 · x(H2O)
  (29.05.04)Dana Group
 
29.05.04.01 Mendozite NaAl(SO4)2•11(H2O) C 2/c 2/m
 
29.05.04.02 Kalinite KAl(SO4)2•11(H2O) C 2/c 2/m
Help on Strunz Class: Strunz Class: 07.CC.15 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.15 Mendozite NaAl(SO4)2•11(H2O) C 2/c 2/m
 
07.CC.15 Kalinite KAl(SO4)2•11(H2O) C 2/c 2/m
 

Other Mendozite Information
Help on References: References: NAME( AntBidBlaNic5) 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 Mendozite :
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
15 - WWW-MINCRYST

Search for Mendozite using:

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

Visit our Advertisers for Mendozite :

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

Ask about Mendozite 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 Mendozite Specimen Label here :

Mendozite

NaAl(SO4)2•11(H2O)
Dana No: 29.05.04.01 Strunz No: 07.CC.15
Locality:

 

Notes: