Neotocite Mineral Data + 
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- 71.1.4.1 Allophane Al2O3·(SiO2)1.3-2·((H2O))2.5-3 None
- 71.1.4.2 Hisingerite Fe2Si2O5(OH)4·2(H2O) Unk Mono
- 71.1.4.3 Imogolite Al2SiO3(OH)4 ? Mono
- 71.1.4.4 Neotocite (Mn,Fe)SiO3·(H2O)(?) None
- 71.1.4.5 Zinalsite! Zn2AlSi2O5(OH)4·2(H2O)(?) Mono
- VIII/H.26-10 Allophane Al2O3·(SiO2)1.3-2·((H2O))2.5-3 None
- VIII/H.26-30 Imogolite Al2SiO3(OH)4 ? Mono
- VIII/H.26-40 Odinite (Fe,Mg,Al,Fe,Ti,Mn)2.5(Si,Al)2O5(OH)4 Cm m
- VIII/H.26-50 Hisingerite Fe2Si2O5(OH)4·2(H2O) Unk Mono
- VIII/H.26-60 Neotocite (Mn,Fe)SiO3·(H2O)(?) None
- VIII/H.26-70 Sturtite* (Fe3)(Mn2,Ca,Mg)Si4O10(OH)3·10(H2O) None
General Neotocite Information |
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 Chemical Formula: |
(Mn,Fe++)SiO3·(H2O) (?) | ||
| Composition: |
Molecular Weight = 149.26 gm | ||
| Manganese 27.60 % Mn 35.64 % MnO | |||
| Iron 9.35 % Fe 12.03 % FeO | |||
| Silicon 18.82 % Si 40.25 % SiO2 | |||
| Hydrogen 1.35 % H 12.07 % H2O | |||
| Oxygen 42.88 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mn2+0.75Fe2+0.25SiO3·(H2O) | ||
| Environment: |
Secondary mineral from the alteration of rhodonite and other manganese silicates. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1848 | ||
| Locality: |
Eric-Ers mine, Torsaker, Gastrikland, Sweden. Link to MinDat.org Location Data. | ||
| Name Origin: |
From the Greek "Neotokos" = of recent origin, being a product of deterioration of other species. | ||
| Synonym: |
Penwithite | ||
| Stratopeite | |||
| Sturtite | |||
Neotocite Image | |||
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Images:
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Neotocite Crystallography |
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| Crystal System: |
Amorphous- No Crystals | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.54(1), 3.59(1), 4.36(1), | ||
Physical Properties of Neotocite |
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| Cleavage: |
None | ||
| Color: |
Black, Dark brown, Liver brown. | ||
| Density: |
2.8 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Habit: |
Amorphous - No crystalline form or imitative shape. | ||
| Habit: |
Colloform - Forming from a gel or colloidal mass. | ||
| Hardness: |
3-4 - Calcite-Fluorite | ||
| Luster: |
Resinous | ||
| Streak: |
brown | ||
Optical Properties of Neotocite |
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| Optical Data: |
NCalc= 1.61 - from Gladstone-Dale relationship (KC = 0.2176) where Ncalc=Dmeas*KC+1 | ||
Calculated Properties of Neotocite |
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| Electron Density: |
relectron=2.75 gm/cc |
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| Fermion Index |
Fermion Index = 0.01097 Boson Index = 0.98903 |
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| Photoelectric: |
PENeotocite = 10.49 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Neotocite is Not Radioactive |
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Neotocite Classification |
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| Dana Class: |
71.1.4.4 (71)Phyllosilicate Sheets of Six-Membered Rings | ||
| (71.1)with 1:1 layers | |||
| (71.1.4)Allophane group | |||
| Strunz Class: |
VIII/H.26-60 VIII - Silicates | ||
| VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups | |||
| VIII/H.26 - Allophane - Sturtite series | |||
Other Neotocite Information |
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| References: |
NAME( Ford32) PHYS. PROP.(Ford32) | ||
| See Also: |
Links to other databases for Neotocite : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 - Franklin Minerals(Palache) 9 -Google Images 10 -Google Scholar 11 -Handbook of Mineralogy (MinSocAm) 12 -Handbook of Mineralogy (UofA) 13 -MinDAT 14 -MinMax(Deutsch) 15 -MinMax(English) 16 -Mineralienatlas (Deutsch) 17 - Minerals of Wisconsin 18 -QUT Mineral Atlas 19 -École des Mines de Paris Search for Neotocite using: Visit our Advertisers for Neotocite : Translate Neotocite Mineral Data : Ask about Neotocite here : Print or Cut-and-Paste your Neotocite Specimen Label here :
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