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Mcallisterite Mineral Data + |
General Mcallisterite Information |
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| Mg2B12O14(OH)12·9(H2O) | |||
| Molecular Weight = 768.55 gm | |||
| Magnesium 6.32 % Mg 10.49 % MgO | |||
| Boron 16.88 % B 54.35 % B2O3 | |||
| Hydrogen 3.93 % H 35.16 % H2O | |||
| Oxygen 72.86 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mg2B12O14(OH)12·9(H2O) | |||
| Approved IMA 1965 | |||
| Mott open cut, head of 20 Mule Team Canyon, Death Valley, Inyo Co., California. Link to MinDat.org Location Data. | |||
| ICSD 4423 | |||
| PDF 18-767 | |||
Mcallisterite Image | |||
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Mcallisterite Crystallography |
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| 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 |
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| [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 |
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| 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 |
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| Uniaxial (-), e=1.459, w=1.504, bire=0.0450. | |||
Calculated Properties of Mcallisterite |
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relectron=1.92 gm/cc |
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| Fermion Index = 0.04026 Boson Index = 0.95974 |
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PEMcallisterite = 0.45 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Mcallisterite is Not Radioactive |
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Mcallisterite Classification |
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| 26.6.2.1 (26)Hydrated Borates Containing Hydroxyl or Halogen | |||
| (26.6)Dana Type | |||
| (26.6.2)Dana Group | |||
| V/H.17-20 V - Nitrates, Carbonates and Borates | |||
| V/H - Group borates. Planary and tetrahedral groups [B3O5]1- to [B6O10]2- | |||
| V/H.17 - Admontite - Rivadavite series | |||
Other Mcallisterite Information |
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| NAME( MinRec) 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris Search for Mcallisterite using: Visit our Advertisers for Mcallisterite : Translate Mcallisterite Mineral Data : Ask about Mcallisterite here : Print or Cut-and-Paste your Mcallisterite Specimen Label here :
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