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Nelenite Mineral Data + |
General Nelenite Information |
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| (Mn,Fe++)16Si12As+++3O36(OH)17 | |||
| Molecular Weight = 2,312.59 gm | |||
| Magnesium 0.11 % Mg 0.17 % MgO | |||
| Manganese 22.57 % Mn 29.14 % MnO | |||
| Zinc 2.83 % Zn 3.52 % ZnO | |||
| Iron 13.28 % Fe 17.09 % FeO | |||
| Silicon 14.57 % Si 31.18 % SiO2 | |||
| Arsenic 9.40 % As 12.40 % As2O3 | |||
| Hydrogen 0.72 % H 6.43 % H2O | |||
| Oxygen 36.53 % O | |||
| ______ ______ | |||
| 100.00 % 99.93 % = TOTAL OXIDE | |||
| Mn2+9.5Fe2+5.5ZnMg0.1As2.9Si12O36.3(OH)16.5 | |||
| In a metamorphosed stratiform zinc deposit. Dimorphous with schallerite. | |||
| Approved IMA 1984 | |||
| From Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. | |||
| Named for Joseph A. Nelen, chemist at the Smithsonian Institution, Washington, D.C., USA. | |||
| Ferroschallerite | |||
Search for Nelenite Images | |||
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Nelenite Crystallography |
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| a:c = 1:6.37054 | |||
| a = 13.418, c = 85.48, Z = 12; V = 13,328.18 Den(Calc)= 3.46 | |||
| Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m | |||
| By Intensity(I/Io): 2.552(1), 1.677(0.6), 1.723(0.5), | |||
Physical Properties of Nelenite |
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| [001] Perfect | |||
| Brown. | |||
| 3.46 | |||
| Transparent to Translucent | |||
| Crystalline - Coarse - Occurs as well-formed coarse sized crystals. | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 5 - Apatite | |||
| Vitreous - Resinous | |||
| light brown | |||
Optical Properties of Nelenite |
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| colorless. | |||
| light brown. | |||
| CI meas= 0.03 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2049,KPDmeas= 0.2049,KC= 0.2113 |
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| Uniaxial (-), e=1.7, w=1.718, bire=0.0180. | |||
Calculated Properties of Nelenite |
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relectron=3.33 gm/cc |
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| Fermion Index = 0.01106 Boson Index = 0.98894 |
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PENelenite = 18.09 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nelenite is Not Radioactive |
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Nelenite Classification |
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| 72.4.1b.3 (72)Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings | |||
| (72.4)with 4-, 6-, and 12-membered rings | |||
| (72.4.1b)Pyrosmalite group (Friedelite subgroup) | |||
| VIII/H.28-40 VIII - Silicates | |||
| VIII/H - Phyllosilicates (layered) Mica minerals with other simple layers, [Si6O15]6- and others | |||
| VIII/H.28 - Pyrosmalite series | |||
Other Nelenite Information |
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| NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2) | |||
| Links to other databases for Nelenite : 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 -École des Mines de Paris Search for Nelenite using: Visit our Advertisers for Nelenite : Translate Nelenite Mineral Data : Ask about Nelenite here : Print or Cut-and-Paste your Nelenite Specimen Label here :
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