General Hallimondite Information![]() Pb2(UO2)(AsO4)2 |
![]() Molecular Weight = 962.27 gm |
|
Uranium 24.74 % U 28.06 % UO2 |
|
Arsenic 15.57 % As 23.89 % As2O5 |
|
Lead 43.07 % Pb 46.39 % PbO |
|
Oxygen 16.63 % O |
|
______ ______ |
|
100.00 % 98.34 % = TOTAL OXIDE |
![]() Pb2(UO2)(AsO4)2 |
![]() Secondary mineral found on a museum specimen from an oxidizing As-Pb-bearing deposit, formed by alteration of galena. |
![]() Approved IMA 1965 |
![]() Michael mine, Weiler, near Lahr, Black Forest, Germany. Link to MinDat.org Location Data. |
![]() Named for Arthur Francis Hallimond (1890-1968), British mineralogist, London, England, for his work with secondary uranium minerals. |
![]() Hallimondite + Pronunciation |
![]() | | Hallimondite Image
|
![]()
|
Hallimondite Crystallography![]() a:b:c =0.6803:1:0.6537 |
![]() a = 7.123, b = 10.469, c = 6.844, Z = 2; alpha = 100.6°, beta = 94.8°, gamma = 91.26° V = 499.77 Den(Calc)= 6.39 |
![]() Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
![]() By Intensity(I/Io): 3.4(1), 2.84(0.9), 1.74(0.6), |
|
![]()
Mouse
|
| Physical Properties of Hallimondite![]() {???} Indistinct |
![]() Yellow. |
![]() 6.39 |
![]() Transparent to Translucent |
![]() Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
![]() 2.5-3 - Finger Nail-Calcite |
![]() Subadamantine |
![]() light yellow |
| Optical Properties of Hallimondite![]() CI meas= -0.095 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.093 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1404,KPDmeas= 0.1406,KC= 0.1285 Ncalc = 1.82 ![]() Biaxial (+), a=1.882, g=1.915, bire=0.0330, 2V(Meas)=80. |
| Calculated Properties of Hallimondite![]() Bulk Density (Electron Density)=5.35 gm/cc |
note: Specific Gravity of Hallimondite =6.40 gm/cc. ![]() Fermion Index = 0.09 |
Boson Index = 0.91 ![]() PEHallimondite =1,474.95 barns/electron |
U=PEHallimondite x relectron=7,887.13 barns/cc. ![]() |
GRapi = 1,761,688.43 (Gamma Ray American Petroleum Institute Units)
Hallimondite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
17.27 ± 4.32 grams of pure Hallimondite .
Weight of pure Hallimondite in grams (gm) and Calculated Diameter of a Sphere with a Density of 6.40 gm/cc.* | Hallimondite Classification![]() 40.02a.32.01 (40)Hydrated Phosphates, etc |
|
(40.02a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++ |
|
(40.02a.32)Dana Group |
|
![]() 08.EA.10 08 - PHOSPHATES, ARSENATES, VANADATES |
|
08.E - Uranyl Phosphates and Arsenates |
|
08.EA -UO2:RO4 = 1:2 |
|
|
| Other Hallimondite Information![]() NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Hallimondite : |
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 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info 14 - Uranium Minerals Search for Hallimondite using: Visit our Advertisers for Hallimondite : A Bijoux Google Search for HallimonditeAdam's Minerals Google Search for Hallimondite Cape Minerals Google Search for Hallimondite Dakota Matrix Minerals Google Search for Hallimondite Excalibur Mineral Corp. Google Search for Hallimondite Exceptional Minerals Google Search for Hallimondite John Betts Fine Minerals Search for Hallimondite McDougall Minerals Google Search for Hallimondite Mineral News Website Link Rock and Mineral Shows Google Search for Hallimondite Weinrich Minerals, Inc. Google Search for Hallimondite Ask about Hallimondite here : Print or Cut-and-Paste your Hallimondite Specimen Label here :
| |
|
| |