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Pyroxmangite Mineral Data + |
General Pyroxmangite Information |
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| (Mn,Fe++)SiO3 | |||
| Molecular Weight = 131.20 gm | |||
| Manganese 33.50 % Mn 43.25 % MnO | |||
| Iron 8.51 % Fe 10.95 % FeO | |||
| Silicon 21.41 % Si 45.79 % SiO2 | |||
| Oxygen 36.58 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+0.8Fe2+0.2SiO3 | |||
| Metamorphic and contact metasomatism of Mn-bearing rocks. Forms a series with pyroxferroite | |||
| Valid Species (Pre-IMA) 1913 | |||
| Tunaberg, Sweden. Link to MinDat.org Location Data. | |||
| Named after its resemblance to the pyroxenes and containing manganese. | |||
| ICSD 34159 | |||
| PDF 29-895 | |||
Pyroxmangite Image | |||
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Pyroxmangite Crystallography |
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| a:b:c =0.8886:1:2.298 | |||
| a = 6.721, b = 7.563, c = 17.38, Z = 14; alpha = 113.17°, beta = 82.27°, gamma = 94.13° V = 802.71 Den(Calc)= 3.80 | |||
| Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | |||
| By Intensity(I/Io): 2.95(1), 2.18(0.7), 3.12(0.6), | |||
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Physical Properties of Pyroxmangite |
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| [110] Perfect, [110] Perfect | |||
| Pink, Rose pink, Purplish pink, Yellowish red brown, Brown. | |||
| 3.8 | |||
| Transparent to translucent | |||
| Massive - Granular - Common texture observed in granite and other igneous rock. | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 5.5-6 - Knife Blade-Orthoclase | |||
| Non-fluorescent. | |||
| Vitreous - Pearly | |||
| Magnetic after heating | |||
| white | |||
Optical Properties of Pyroxmangite |
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| CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.027 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1956,KPDmeas= 0.1956,KC= 0.2011 |
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| Biaxial (+), a=1.726-1.748, b=1.728-1.75, g=1.744-1.764, bire=0.0160-0.0180, 2V(Calc)=40-42, 2V(Meas)=35-46. Dispersion r > v moderate. | |||
Calculated Properties of Pyroxmangite |
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relectron=3.66 gm/cc |
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| Fermion Index = 0.01197 Boson Index = 0.98803 |
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PEPyroxmangite = 11.99 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pyroxmangite is Not Radioactive |
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Pyroxmangite Classification |
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| 65.6.1.1 (65)Inosilicate Single-Width Unbranched Chains, W=1 | |||
| (65.6)with chains P=7 | |||
| (65.6.1)Pyroxmangite group | |||
| VIII/F.31-20 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) Seven bands [Si7O21]14- | |||
| VIII/F.31 - Pyroxferroite - Plumalsite series | |||
Other Pyroxmangite Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Pyroxmangite : 1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 - Franklin Minerals(Dunn) 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 - HyperPhysics 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 - Mineral and Gemstone Kingdom 16 -Mineralienatlas (Deutsch) 17 -QUT Mineral Atlas 18 -University of Colorado - Mineral Structure Data 19 - WWW-MINCRYST 20 -École des Mines de Paris Search for Pyroxmangite using: Visit our Advertisers for Pyroxmangite : Translate Pyroxmangite Mineral Data : Ask about Pyroxmangite here : Print or Cut-and-Paste your Pyroxmangite Specimen Label here :
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