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Ilesite Mineral Data + |
General Ilesite Information |
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| (Mn,Zn,Fe++)SO4·4(H2O) | |||
| Molecular Weight = 226.29 gm | |||
| Manganese 14.57 % Mn 18.81 % MnO | |||
| Zinc 8.67 % Zn 10.79 % ZnO | |||
| Iron 2.47 % Fe 3.17 % FeO | |||
| Hydrogen 3.56 % H 31.84 % H2O | |||
| Sulfur 14.17 % S 35.38 % SO3 | |||
| Oxygen 56.56 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+0.6Zn0.3Fe2+0.1(SO4)·4(H2O) | |||
| Secondary mineral formed by oxidiation of Mn-bearing sulfide minerals. | |||
| Valid Species (Pre-IMA) 1881 | |||
| Sulfide veins at the head of Hall Valley, Park County, Colorado, USA. Link to MinDat.org Location Data. | |||
| Named for Malvern W. Iles (1853-1890), American metallurgist, Denver, Colorado. | |||
Ilesite Image | |||
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Ilesite Crystallography |
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| a:b:c =0.4375:1:0.5821 | |||
| a = 6.02, b = 13.76, c = 8.01, Z = 4; beta = 90.8° V = 663.45 Den(Calc)= 2.27 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | |||
| By Intensity(I/Io): 4.48(1), 3.96(0.65), 5.56(0.65), | |||
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Physical Properties of Ilesite |
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| Green, Greenish white, White. | |||
| 2.261 | |||
| Transparent | |||
| Aggregates - Made of numerous individual crystals or clusters. | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| 2-3 - Gypsum-Calcite | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| Nonmagnetic | |||
| white | |||
Optical Properties of Ilesite |
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| CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2278,KPDmeas= 0.2287,KC= 0.231 |
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| Biaxial (-), a=1.511, b=1.519, g=1.521, bire=0.0100 | |||
Calculated Properties of Ilesite |
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relectron=2.29 gm/cc |
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| Fermion Index = 0.00541 Boson Index = 0.99459 |
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PEIlesite = 9.31 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ilesite is Not Radioactive |
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Ilesite Classification |
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| 29.6.6.3 (29)Hydrated Acid and Sulfates | |||
| (29.6)where A XO4 · x(H2O) | |||
| (29.6.6)Rozenite Group (Monoclinic) | |||
| VI/C.03-30 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size | |||
| VI/C.03 - Rozenite series, Starkeyite - Boyleite | |||
Other Ilesite Information |
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| PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Ilesite : 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 Ilesite using: Visit our Advertisers for Ilesite : Translate Ilesite Mineral Data : Ask about Ilesite here : Print or Cut-and-Paste your Ilesite Specimen Label here :
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