General Babingtonite InformationCa2(Fe++,Mn)Fe+++Si5O14(OH) |
Molecular Weight = 573.05 gm |
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Calcium 13.99 % Ca 19.57 % CaO |
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Manganese 2.40 % Mn 3.09 % MnO |
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Iron 17.05 % Fe 21.94 % FeO |
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Silicon 24.51 % Si 52.43 % SiO2 |
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Hydrogen 0.18 % H 1.57 % H2O |
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Oxygen 41.88 % O |
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100.00 % 98.60 % = TOTAL OXIDE |
Ca2Fe2+0.75Mn2+0.25Fe2+Si5O14(OH) |
Valid Species (Pre-IMA) 1824 |
Link to MinDat.org Location Data. |
Named after the Irish physicist and mineralogist, W. Babington (1757-1833). |
Babingtonite + Pronunciation |
ICSD 2932 |
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PDF 45-1385 |
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Babingtonite Crystallographya:b:c =0.6388:1:0.5711 |
a = 7.36, b = 11.52, c = 6.58, Z = 2; alpha = 91.516°, beta = 93.85°, gamma = 104.067° V = 539.76 Den(Calc)= 3.53 |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
By Intensity(I/Io): 2.75(1), 2.87(0.8), 3.12(0.7), |
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| Physical Properties of Babingtonite{100} Perfect, {001} Perfect |
Brownish black, Greenish black, Black. |
3.4 |
Transparent to Translucent |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces. |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
5.5-6 - Knife Blade-Orthoclase |
Non-fluorescent. |
Vitreous (Glassy) |
brown |
| Optical Properties of BabingtoniteCI meas= -0.063 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.024 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2076,KPDmeas= 0.2156,KC= 0.2028 Ncalc = 1.69 - 1.72 Biaxial (+), a=1.717, b=1.73, g=1.752, bire=0.0350, 2V(Calc)=76, 2V(Meas)=60-65. Dispersion relatively strong. |
none. |
none. |
non. |
| Calculated Properties of BabingtoniteBulk Density (Electron Density)=3.48 gm/cc |
note: Specific Gravity of Babingtonite =3.53 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEBabingtonite = 8.31 barns/electron |
U=PEBabingtonite x rElectron Density= 28.96 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Babingtonite is Not Radioactive | Babingtonite Classification65.04.01.02 (65)Inosilicate Single-Width Unbranched Chains, W=1 |
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(65.04)with chains P=5 |
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(65.04.01)Rhodonite group |
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09.DK.05 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DK -Inosilicates with 5-periodic single chains |
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| Other Babingtonite InformationNAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) |
Links to other databases for Babingtonite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - CalTech Mineral Spectroscopy 5 - EUROmin Project 6 - Ecole des Mines de Paris 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineral and Gemstone Kingdom 14 - Mineralienatlas (Deutsch) 15 - Online Mineral Museum 16 - QUT Mineral Atlas 17 - Ruff.Info 18 - WWW-MINCRYST Search for Babingtonite using: Visit our Advertisers for Babingtonite : B and L Fine MineralsDakota Matrix Minerals Dan & Diana Weinrich Mineral Auctions Excalibur Mineral Corp. Exceptional Minerals John Betts Fine Minerals Mineral News Mineral of the Month Club NY/NJ Gem & Mineral Show TIMA Mineral Analyzer Weinrich Minerals, Inc. Wright's Rock Shop Ask about Babingtonite here : Print or Cut-and-Paste your Babingtonite Specimen Label here :
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