General Mcallisterite Information![]() Mg2B12O14(OH)12•9(H2O) |
![]() Molecular Weight = 768.55 gm |
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Magnesium 6.32 % Mg 10.49 % MgO |
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Boron 16.88 % B 54.35 % B2O3 |
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Hydrogen 3.93 % H 35.16 % H2O |
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Oxygen 72.86 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Mg2B12O14(OH)12•9(H2O) |
![]() Secondary mineral derived from colemanite and priceite veins in altered basalt. |
![]() Approved IMA 1965 |
![]() Mott open cut, head of 20 Mule Team Canyon, Death Valley, Inyo Co., California. Link to MinDat.org Location Data. |
![]() Named for James Franklin McAllister (1911-2000), geologist, U.S. Geological Survey, Menlo Park, California, USA, who collected the originally described material. |
![]() Mcallisterite + Pronunciation |
![]() ![]() ICSD 4423 |
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PDF 18-767 |
| | Mcallisterite Image
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Mcallisterite Crystallography![]() a:c = 1:3.0803 |
![]() a = 11.543, c = 35.556, Z = 6; V = 4,102.81 Den(Calc)= 1.87 |
![]() Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c |
![]() By Intensity(I/Io): 8.715(1), 4.063(0.5), 5.772(0.5), |
| Physical Properties of Mcallisterite![]() {0001} Good, {0112} Good |
![]() Colorless, Yellow brown, White. |
![]() 1.867 |
![]() Transparent |
![]() Brittle - Generally displayed by glasses and most non-metallic minerals. |
![]() 2.5 - Finger Nail |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Mcallisterite![]() CI meas= -0.002 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2575,KPDmeas= 0.2579,KC= 0.2574 Ncalc = 1.48 ![]() Uniaxial (-), e=1.459, w=1.504, bire=0.0450. |
| Calculated Properties of Mcallisterite![]() Bulk Density (Electron Density)=1.92 gm/cc |
note: Specific Gravity of Mcallisterite =1.87 gm/cc. ![]() Fermion Index = 0.04 |
Boson Index = 0.96 ![]() PEMcallisterite = 0.45 barns/electron |
U=PEMcallisterite x rElectron Density= 0.86 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Mcallisterite is Not Radioactive | Mcallisterite Classification![]() 26.06.02.01 (26)Hydrated Borates Containing Hydroxyl or Halogen |
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(26.06)Dana Type |
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(26.06.02)Dana Group |
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![]() 06.FA.10 06 - BORATES |
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06.F - Hexaborates |
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06.FA -Neso-hexaborates |
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| Other Mcallisterite Information![]() NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Mcallisterite : |
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 Mcallisterite using: Visit our Advertisers for Mcallisterite : A Bijoux Google Search for McallisteriteAdam's Minerals Google Search for Mcallisterite Cape Minerals Google Search for Mcallisterite Dakota Matrix Minerals Google Search for Mcallisterite Excalibur Mineral Corp. Google Search for Mcallisterite Exceptional Minerals Google Search for Mcallisterite John Betts Fine Minerals Search for Mcallisterite McDougall Minerals Google Search for Mcallisterite Mineral News Website Link Rock and Mineral Shows Google Search for Mcallisterite Weinrich Minerals, Inc. Google Search for Mcallisterite Ask about Mcallisterite here : Print or Cut-and-Paste your Mcallisterite Specimen Label here :
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