General Mendozite Information![]() NaAl(SO4)2•11(H2O) |
![]() Molecular Weight = 440.27 gm |
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Sodium 5.22 % Na 7.04 % Na2O |
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Aluminum 6.13 % Al 11.58 % Al2O3 |
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Hydrogen 5.04 % H 45.01 % H2O |
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Sulfur 14.57 % S 36.37 % SO3 |
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Oxygen 69.05 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() NaAl(SO4)2•11(H2O) |
![]() Oxidation of pyrite in reaction with clays, |
![]() Valid Species (Pre-IMA) 1868 |
![]() "San Juan, near Mendoza" [probably meaning Mendoza Province; the original occurrence appears lost.], Argintina. Link to MinDat.org Location Data. |
![]() Named for the locality. |
![]() Mendozite + Pronunciation |
![]() ![]() ICSD 26005 |
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PDF 22+475 |
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Mendozite Crystallography![]() a:b:c =2.388:1:0.911 |
![]() a = 21.75, b = 9.108, c = 8.298, Z = 4; beta = 92.47° V = 1,642.30 Den(Calc)= 1.78 |
![]() Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c |
![]() By Intensity(I/Io): 3.5(1), 4.76(0.85), 4.58(0.65), |
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| Physical Properties of Mendozite![]() {100} Good, {001} Indistinct, {010} Indistinct |
![]() Colorless, White. |
![]() 1.73 - 1.765, Average = 1.74 |
![]() Transparent to Translucent |
![]() 3 - Calcite |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Mendozite![]() 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 ![]() Biaxial (-), a=1.449, b=1.461, g=1.463, bire=0.0140, 2V(Calc)=44, 2V(Meas)=56. |
| Calculated Properties of Mendozite![]() Bulk Density (Electron Density)=1.86 gm/cc |
note: Specific Gravity of Mendozite =1.78 gm/cc. ![]() Fermion Index = 0.0014314753 |
Boson Index = 0.9985685247 ![]() PEMendozite = 1.26 barns/electron |
U=PEMendozite x rElectron Density= 2.34 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Mendozite is Not Radioactive | Mendozite Classification![]() 29.05.04.01 (29)Hydrated Acid and Sulfates |
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(29.05)where A B (XO4)2 · x(H2O) |
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(29.05.04)Dana Group |
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![]() 07.CC.15 07 - SULFATES (SELENATES, TELLURATES) |
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07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O |
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07.CC -With medium-sized and large cations |
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| Other Mendozite Information![]() NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() 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: Visit our Advertisers for Mendozite : A Bijoux Google Search for MendoziteAdam'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 : Print or Cut-and-Paste your Mendozite Specimen Label here :
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