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Monticellite Mineral Data + |
General Monticellite Information |
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| CaMgSiO4 | |||
| Molecular Weight = 156.47 gm | |||
| Calcium 25.61 % Ca 35.84 % CaO | |||
| Magnesium 15.53 % Mg 25.76 % MgO | |||
| Silicon 17.95 % Si 38.40 % SiO2 | |||
| Oxygen 40.90 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| CaMgSiO4 | |||
| Occurs in a carbonatite, a magmatic product of silica-deficient magma differentiation and rich in CO2. | |||
| Valid Species (Pre-IMA) 1831 | |||
| Magnet Cove, Hot Spring Co., Arkansas, USA. Link to MinDat.org Location Data. | |||
| Named for Teodoro Monticelli (1759-1846), Italian Mineralogist. | |||
| ICSD 79792 | |||
| PDF 35-590 | |||
Monticellite Image | |||
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Monticellite Crystallography |
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| a:b:c =0.4345:1:0.5749 | |||
| a = 4.815, b = 11.08, c = 6.37, Z = 4; V = 339.84 Den(Calc)= 3.06 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma | |||
| By Intensity(I/Io): 2.666(1), 2.586(0.4), 3.637(0.4), | |||
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Mouse |
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Physical Properties of Monticellite |
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| [010] Indistinct | |||
| Colorless, Greenish gray, Gray. | |||
| 3.2 | |||
| Transparent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Crystalline - Fine - Occurs as well-formed fine sized crystals. | |||
| Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |||
| 5 - Apatite | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| Nonmagnetic | |||
| white | |||
Optical Properties of Monticellite |
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| CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.042 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2154,KPDmeas= 0.2059,KC= 0.2067 |
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| Biaxial (-), a=1.639-1.663, b=1.645-1.674, g=1.653-1.68, bire=0.0140-0.0170, 2V(Calc)=72-84, 2V(Meas)=88-65. Dispersion relatively weak. | |||
| colorless. | |||
| colorless. | |||
| colorless. | |||
Calculated Properties of Monticellite |
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relectron=3.19 gm/cc |
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| Fermion Index = 0.02445 Boson Index = 0.97555 |
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PEMonticellite = 4.17 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Monticellite is Not Radioactive |
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Monticellite Classification |
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| 51.3.2.1 (51)Nesosilicate Insular SiO4 Groups Only | |||
| (51.3)with all cations in octahedral [6] coordination | |||
| (51.3.2)Monticellite - Kirschsteinite series | |||
| VIII/A.05-10 VIII - Silicates | |||
| VIII/A - Nesosilicates with [SiO4]4-groups, cations of octahedral orientation [6] | |||
| VIII/A.05 - Monticellite - Glaucochroite series | |||
Other Monticellite Information |
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| NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | |||
| Links to other databases for Monticellite : 1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (MinSocAm) 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 -University of Colorado - Mineral Structure Data 16 - WWW-MINCRYST 17 -École des Mines de Paris Search for Monticellite using: Visit our Advertisers for Monticellite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Monticellite Mineral Data : Ask about Monticellite here : Print or Cut-and-Paste your Monticellite Specimen Label here :
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