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Boyleite Mineral Data + |
General Boyleite Information |
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| (Zn,Mg)SO4·4(H2O) | |||
| Molecular Weight = 223.24 gm | |||
| Magnesium 2.72 % Mg 4.51 % MgO | |||
| Zinc 21.97 % Zn 27.34 % ZnO | |||
| Hydrogen 3.61 % H 32.28 % H2O | |||
| Sulfur 14.36 % S 35.86 % SO3 | |||
| Oxygen 57.33 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Zn0.75Mg0.25(SO4)·4(H2O) | |||
| Approved IMA 1978 | |||
| Link to MinDat.org Location Data. | |||
| IMA1977-026 | |||
Boyleite Image | |||
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Boyleite Crystallography |
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| a:b:c =0.4374:1:0.5852 | |||
| a = 5.95, b = 13.6, c = 7.96, Z = 4; beta = 90.3° V = 644.11 Den(Calc)= 2.30 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | |||
| By Intensity(I/Io): 4.47(1), 5.46(1), 6.85(0.8), | |||
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Mouse |
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Physical Properties of Boyleite |
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| None | |||
| White. | |||
| 2.41 | |||
| Transparent to Translucent | |||
| Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | |||
| 2 - Gypsum | |||
| Vitreous - Dull | |||
| white | |||
Optical Properties of Boyleite |
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| CI meas= 0.025 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2303,KPDmeas= 0.2198,KC= 0.2255 |
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| Biaxial (-), a=1.522, b=1.531, g=1.536, bire=0.0140, 2V(Calc)=72, 2V(Meas)=70. | |||
Calculated Properties of Boyleite |
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relectron=2.34 gm/cc |
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| Fermion Index = 0.01308 Boson Index = 0.98692 |
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PEBoyleite = 11.36 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Boyleite is Not Radioactive |
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Boyleite Classification |
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| 29.6.6.5 (29)Hydrated Acid and Sulfates | |||
| (29.6)where A XO4 · x(H2O) | |||
| (29.6.6)Rozenite Group (Monoclinic) | |||
| VI/C.03-50 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 Boyleite 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 Boyleite : 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 -École des Mines de Paris Search for Boyleite using: Visit our Advertisers for Boyleite : Translate Boyleite Mineral Data : Ask about Boyleite here : Print or Cut-and-Paste your Boyleite Specimen Label here :
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