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Jerrygibbsite Mineral Data + |
General Jerrygibbsite Information |
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| (Mn,Zn)9(SiO4)4(OH)2 | |||
| Molecular Weight = 902.02 gm | |||
| Manganese 51.77 % Mn 66.85 % MnO | |||
| Zinc 3.62 % Zn 4.51 % ZnO | |||
| Silicon 12.45 % Si 26.64 % SiO2 | |||
| Hydrogen 0.22 % H 2.00 % H2O | |||
| Oxygen 31.93 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+8.5Zn0.5(SiO4)4(OH)2 | |||
| Metamorphosed Zn-Mn deposit. Dimorphous with sonolite. | |||
| Approved IMA 1984 | |||
| Franklin mine, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. | |||
| Named for Gerald V. Gibbs (1929-), Virginia Polytechnic Institute, Blacksburg, Virginia, USA. | |||
| ICSD 67041 | |||
| PDF 38-352 | |||
Search for Jerrygibbsite Images | |||
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Jerrygibbsite Crystallography |
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| a:b:c =0.4532:1:2.6327 | |||
| a = 4.85, b = 10.7, c = 28.17, Z = 4; V = 1,461.88 Den(Calc)= 4.10 | |||
| Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Pbn21 | |||
| By Intensity(I/Io): 1.806(1), 2.557(1), 2.869(0.78), | |||
Physical Properties of Jerrygibbsite |
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| [001] Imperfect | |||
| Violet pink. | |||
| 4 | |||
| Transparent to Translucent | |||
| Massive - Granular - Common texture observed in granite and other igneous rock. | |||
| 5.5 - Knife Blade | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| light pink | |||
Optical Properties of Jerrygibbsite |
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| CI meas= 0.028 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.052 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1906,KPDmeas= 0.1953,KC= 0.201 |
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| Biaxial (-), a=1.772, b=1.783, g=1.789, bire=0.0170, 2V(Calc)=72, 2V(Meas)=72. Dispersion r > v moderate. | |||
| none. | |||
| none. | |||
| none. | |||
Calculated Properties of Jerrygibbsite |
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relectron=3.81 gm/cc |
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| Fermion Index = 0.00745 Boson Index = 0.99255 |
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PEJerrygibbsite = 15.73 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jerrygibbsite is Not Radioactive |
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Jerrygibbsite Classification |
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| 52.3.2d.2 (52)Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O | |||
| (52.3)with cations in [6] coordination only | |||
| (52.3.2d)Humite group (Clinohumite series) | |||
| VIII/B.04-100 VIII - Silicates | |||
| VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, cations of octahedral and tetrahedral orientation [4/6] | |||
| VIII/B.04 - Humite group | |||
Other Jerrygibbsite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | |||
| Links to other databases for Jerrygibbsite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Jerrygibbsite using: Visit our Advertisers for Jerrygibbsite : Translate Jerrygibbsite Mineral Data : Ask about Jerrygibbsite here : Print or Cut-and-Paste your Jerrygibbsite Specimen Label here :
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