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Samfowlerite Mineral Data + |
General Samfowlerite Information |
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| Ca14Mn++3Zn2(Be,Zn)2Be6(SiO4)6(Si2O7)4(OH,F)6 | |||
| Molecular Weight = 2,271.52 gm | |||
| Calcium 24.70 % Ca 34.56 % CaO | |||
| Manganese 7.26 % Mn 9.37 % MnO | |||
| Beryllium 2.02 % Be 5.62 % BeO | |||
| Zinc 7.48 % Zn 9.32 % ZnO | |||
| Silicon 17.31 % Si 37.03 % SiO2 | |||
| Hydrogen 0.43 % H 3.81 % H2O | |||
| Oxygen 39.80 % O | |||
| Fluorine 1.00 % F 1.00 % F | |||
| - % F -0.42 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.28 % = TOTAL OXIDE | |||
| Ca14Mn2+3Zn2.6Be5.1Si14O56.5H9.6F1.2 | |||
| Metamorphosed stratiform Zn-Mn deposit in vugs in granular willemite-franklinite-andradite ore. | |||
| Approved IMA 1994 | |||
| Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data. | |||
| Named for Samuel Fouler, M.D. (1779-1844), who early encouraged study of the Franklin deposits. | |||
| ICSD 100313 | |||
| IMA1991-045 | |||
| PDF 26-176 | |||
Search for Samfowlerite Images | |||
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Samfowlerite Crystallography |
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| a:b:c =0.504:1:0.8106 | |||
| a = 9.068, b = 17.992, c = 14.586, Z = 2; beta = 104.86° V = 2,300.14 Den(Calc)= 3.28 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c | |||
| By Intensity(I/Io): 2.863(1), 2.388(0.5), 2.653(0.5), | |||
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Mouse |
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Physical Properties of Samfowlerite |
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| None | |||
| Colorless, White. | |||
| 3.28 | |||
| Transparent | |||
| Crystalline - Fine - Occurs as well-formed fine sized crystals. | |||
| 2.5-3 - Finger Nail-Calcite | |||
| Fluorescent, Short UV=weak red, Long UV=weak red. | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Samfowlerite |
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| CI meas= 0.014 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2068,KPDmeas= 0.2068,KC= 0.2097 |
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| Biaxial (-), a=1.674, b=1.68, g=1.681, bire=0.0070, 2V(Calc)=44, 2V(Meas)=29. | |||
Calculated Properties of Samfowlerite |
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relectron=3.24 gm/cc |
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| Fermion Index = 0.03191 Boson Index = 0.96809 |
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PESamfowlerite = 9.20 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Samfowlerite is Not Radioactive |
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Samfowlerite Classification |
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| 58.2.7.1 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups | |||
| (58.2)with cations in [6] and higher coordination; single and double groups (n=1,2) | |||
| (58.2.7)Dana Group | |||
| VIII/C.24-90 VIII - Silicates | |||
| VIII/C - Sorosilicates, mixed structure with [SiO4]2- "inseln" and [Si2O7]6- groups | |||
| VIII/C.24 - Pumpellyite group | |||
Other Samfowlerite Information |
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| NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.80,p185,1995) OPTIC PROP.(Am.Min.,Vol.80,p185,1995) | |||
| Links to other databases for Samfowlerite : 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 Samfowlerite using: Visit our Advertisers for Samfowlerite : Translate Samfowlerite Mineral Data : Ask about Samfowlerite here : Print or Cut-and-Paste your Samfowlerite Specimen Label here :
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