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Muirite Mineral Data + |
General Muirite Information |
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| Ba10Ca2Mn++TiSi10O30(OH,Cl,F)10 | |||
| Molecular Weight = 2,526.04 gm | |||
| Barium 54.36 % Ba 60.70 % BaO | |||
| Calcium 3.17 % Ca 4.44 % CaO | |||
| Titanium 1.90 % Ti 3.16 % TiO2 | |||
| Manganese 2.17 % Mn 2.81 % MnO | |||
| Silicon 11.12 % Si 23.79 % SiO2 | |||
| Hydrogen 0.28 % H 2.50 % H2O | |||
| Chlorine 2.81 % Cl 2.81 % Cl | |||
| - % Cl -0.63 % -O=Cl2 | |||
| Oxygen 23.44 % O | |||
| Fluorine 0.75 % F 0.75 % F | |||
| - % F -0.32 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Ba10Ca2Mn2+TiSi10O30(OH)7Cl2F | |||
| Approved IMA 1965 | |||
| Big Creek - Rush Creek sanbornite deposit, 5 miles NE of Trimmer, Fresno Co., California. Link to MinDat.org Location Data. | |||
| Named for John Muir (1838-1914), American geologist and explorer who made early observations in geology in the Sierra Nevada Mountains, California, USA. | |||
| ICSD 23533 | |||
| PDF 18-161 | |||
Muirite Image | |||
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Muirite Crystallography |
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| a:c = 1:0.40178 | |||
| a = 14, c = 5.625, Z = 1; V = 1,102.50 Den(Calc)= 3.80 | |||
| Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm | |||
| By Intensity(I/Io): 2.91(1), 4.42(0.75), 3.73(0.6), | |||
Physical Properties of Muirite |
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| [001] Indistinct, [100] Indistinct | |||
| Orange, Brown. | |||
| 3.86 | |||
| Anhedral Grains - Granular minerals without the expression of crystal shapes | |||
| 2.5 - Finger Nail | |||
| Vitreous (Glassy) | |||
| light orange | |||
Optical Properties of Muirite |
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| orange. | |||
| colorless. | |||
| CI meas= -0.054 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.071 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1843,KPDmeas= 0.1815,KC= 0.1722 |
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| Uniaxial (+), w=1.697, e=1.704, bire=0.0070. | |||
Calculated Properties of Muirite |
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relectron=3.46 gm/cc |
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| Fermion Index = 0.10468 Boson Index = 0.89532 |
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PEMuirite = 244.96 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Muirite is Not Radioactive |
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Muirite Classification |
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| 62.1.1.1 (62)Cyclosilicate Eight-Membered Rings | |||
| (62.1)with 8-memebered and larger rings | |||
| (62.1.1)Dana Group | |||
| VIII/C.14-20 VIII - Silicates | |||
| VIII/C - Sorosilicates with [Si2O7]6-, with anions unfamiliar to tetraheders [O,OH,F] | |||
| VIII/C.14 - Fresnoite - Belkovite series | |||
Other Muirite Information |
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| NAME( MinRec) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | |||
| Links to other databases for Muirite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Muirite using: Visit our Advertisers for Muirite : Translate Muirite Mineral Data : Ask about Muirite here : Print or Cut-and-Paste your Muirite Specimen Label here :
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