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Ulexite Mineral Data + |
General Ulexite Information |
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| NaCaB5O6(OH)6·5(H2O) | |||
| Molecular Weight = 405.23 gm | |||
| Sodium 5.67 % Na 7.65 % Na2O | |||
| Calcium 9.89 % Ca 13.84 % CaO | |||
| Boron 13.34 % B 42.95 % B2O3 | |||
| Hydrogen 3.98 % H 35.57 % H2O | |||
| Oxygen 67.12 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| NaCaB5O6(OH)6·5(H2O) | |||
| Secondary borate mineral probably derived from alteration of borax under mild heat, pressure and addition of Ca. | |||
| Valid Species (Pre-IMA) 1850 | |||
| Iquique, Tarapacá, Chile. Link to MinDat.org Location Data. | |||
| Named after the German chemist, George Ludwig Ulex (1811-1883). | |||
| ICSD 100565 | |||
| PDF 12-419 | |||
Ulexite Image | |||
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Ulexite Crystallography |
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| a:b:c =0.6849:1:0.5192 | |||
| a = 8.809, b = 12.86, c = 6.678, Z = 2; alpha = 90.25°, beta = 109.1°, gamma = 105.1° V = 690.17 Den(Calc)= 1.95 | |||
| Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | |||
| By Intensity(I/Io): 12.2(1), 7.75(0.8), 6(0.3), | |||
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Mouse |
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Physical Properties of Ulexite |
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| [010] Perfect, [110] Perfect | |||
| Colorless, White. | |||
| 1.95 - 1.96, Average = 1.95 | |||
| Translucent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Acicular - Occurs as needle-like crystals. | |||
| Capillary - Very slender and long, like a thread or hair (e.g. millerite). | |||
| Fibrous - Crystals made up of fibers. | |||
| 2.5 - Finger Nail | |||
| None. | |||
| Chatoyant | |||
| Nonmagnetic | |||
| white | |||
Optical Properties of Ulexite |
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| CI meas= -0.009 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2598,KPDmeas= 0.2592,KC= 0.2569 |
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| Biaxial (+), a=1.49, b=1.51, g=1.52, bire=0.0300, 2V(Calc)=68, 2V(Meas)=73-78. Dispersion none. | |||
| none. | |||
| none. | |||
| none. | |||
Calculated Properties of Ulexite |
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relectron=2.01 gm/cc |
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| Fermion Index = 0.027 Boson Index = 0.973 |
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PEUlexite = 1.54 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ulexite is Not Radioactive |
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Ulexite Classification |
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| 26.5.11.1 (26)Hydrated Borates Containing Hydroxyl or Halogen | |||
| (26.5)Dana Type | |||
| (26.5.11)Dana Group | |||
| V/H.14-10 V - Nitrates, Carbonates and Borates | |||
| V/H - Group borates. Planary and tetrahedral groups [B3O5]1- to [B6O10]2- | |||
| V/H.14 - Ulexite series | |||
Other Ulexite Information |
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| NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Sinkankas66) | |||
| Links to other databases for Ulexite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - EUROmin Project 6 - Glendale Community College 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 - Mineral and Gemstone Kingdom 14 -Mineralienatlas (Deutsch) 15 -QUT Mineral Atlas 16 - WWW-MINCRYST 17 -École des Mines de Paris Search for Ulexite using: Visit our Advertisers for Ulexite : Translate Ulexite Mineral Data : Ask about Ulexite here : Print or Cut-and-Paste your Ulexite Specimen Label here :
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