General Leiteite Information![]() ZnAs+++2O4 |
![]() Molecular Weight = 279.23 gm |
|
Zinc 23.42 % Zn 29.15 % ZnO |
|
Arsenic 53.66 % As 70.85 % As2O3 |
|
Oxygen 22.92 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
![]() ZnAs2O4 |
![]() Approved IMA 1977 |
![]() Tsumeb, Namibia Link to MinDat.org Location Data. |
![]() Named for Luis Texeira-Leite (1942-), Portuguese mineral dealer who discovered the mineral. |
![]() Leiteite |
![]() ![]() ICSD 202249 |
|
PDF 29-740 |
| | Leiteite Image
|
![]()
|
Leiteite Crystallography![]() a:b:c =0.9044:1:3.5039 |
![]() a = 4.542, b = 5.022, c = 17.597, Z = 4; beta = 90.81° V = 401.35 Den(Calc)= 4.62 |
![]() Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c |
![]() By Intensity(I/Io): 3.133(1), 3.163(0.76), 1.685(0.49), |
|
![]()
Mouse
|
| Physical Properties of Leiteite![]() {100} Perfect |
![]() Brown, Colorless, Pearl white. |
![]() 4.31 |
![]() Transparent |
![]() Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite). |
![]() 1.5-2 - Talc-Gypsum |
![]() Pearly |
![]() white |
| Optical Properties of Leiteite![]() CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.073 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.197,KPDmeas= 0.2111,KC= 0.2126 Ncalc = 1.92 - 1.98 ![]() Biaxial (+), a=1.87, b=1.88, g=1.98, bire=0.1100, 2V(Calc)=38, 2V(Meas)=27. Dispersion r < v very strong. |
| Calculated Properties of Leiteite![]() Bulk Density (Electron Density)=3.95 gm/cc |
note: Specific Gravity of Leiteite =4.31 gm/cc. ![]() Fermion Index = 0.0097113529 |
Boson Index = 0.9902886471 ![]() PELeiteite = 50.04 barns/electron |
U=PELeiteite x rElectron Density= 197.72 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Leiteite is Not Radioactive | Leiteite Classification![]() 45.01.07.01 (45)Acid and normal Antimonites, Arsenites and Phosphites |
|
(45.01)with miscellaneous formulae |
|
(45.01.07)Dana Group |
|
![]() 04.JA.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
|
04.J - Arsenites, Antimonites, Bismuthites, Sulfites, |
|
04.JA -Arsenites, antimonites, bismuthites; without additional anions, without H2O |
|
| Other Leiteite Information![]() NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
![]() Links to other databases for Leiteite : |
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 Leiteite using: Visit our Advertisers for Leiteite : A Bijoux Google Search for LeiteiteAdam's Minerals Google Search for Leiteite Cape Minerals Google Search for Leiteite Dakota Matrix Minerals Google Search for Leiteite Excalibur Mineral Corp. Google Search for Leiteite Exceptional Minerals Google Search for Leiteite John Betts Fine Minerals Search for Leiteite McDougall Minerals Google Search for Leiteite Mineral News Website Link Rock and Mineral Shows Google Search for Leiteite Weinrich Minerals, Inc. Google Search for Leiteite Ask about Leiteite here : Print or Cut-and-Paste your Leiteite Specimen Label here :
| |
|
| |