General Olivine Information![]() (Mg,Fe)2SiO4 |
![]() Molecular Weight = 153.31 gm |
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Magnesium 25.37 % Mg 42.06 % MgO |
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Iron 14.57 % Fe 18.75 % FeO |
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Silicon 18.32 % Si 39.19 % SiO2 |
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Oxygen 41.74 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Mg1.6Fe2+0.4(SiO4) |
![]() Basic and ultra basic igneous rocks. Goup species name. |
![]() Not Approved IMA |
![]() Common world wide occurrence. Link to MinDat.org Location Data. |
![]() Named after the green color. |
![]() Olivine |
![]() ![]() Calcio-olivine - calcium-dominant member of the olivine group |
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Chrysolite - light yellowish green |
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Peridot |
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Olivine Crystallography![]() a:b:c =0.4663:1:0.6146 |
![]() a = 4.78, b = 10.25, c = 6.3, Z = 4; V = 308.67 Den(Calc)= 3.30 |
![]() Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm |
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| Physical Properties of Olivine![]() {001} Good, {010} Distinct |
![]() Yellowish green, Olive green, Greenish black, Reddish brown. |
![]() 3.27 - 3.37, Average = 3.32 |
![]() Transparent to translucent |
![]() Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
![]() Massive - Granular - Common texture observed in granite and other igneous rock. |
![]() 6.5-7 - Pyrite-Quartz |
![]() Non-fluorescent. |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Olivine![]() CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2,KPDmeas= 0.1988,KC= 0.2009 Ncalc = 1.66 - 1.68 ![]() Biaxial (+), a=1.63-1.65, b=1.65-1.67, g=1.67-1.69, bire=0.0400, 2V(Calc)=88, 2V(Meas)=46-98. Dispersion relatively weak. |
| Calculated Properties of Olivine![]() Bulk Density (Electron Density)=3.25 gm/cc |
note: Specific Gravity of Olivine =3.30 gm/cc. ![]() Fermion Index = 0.03 |
Boson Index = 0.97 ![]() PEOlivine = 5.56 barns/electron |
U=PEOlivine x rElectron Density= 18.11 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Olivine is Not Radioactive | Olivine Classification![]() 51.03.01.00 (51)Nesosilicate Insular SiO4 Groups Only |
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(51.03)with all cations in octahedral [6] coordination |
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(51.03.01)Olivine group |
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![]() 09.AC.05 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AC -Nesosilicates without additional anions; |
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| Other Olivine Information![]() NAME( Duda&Rejl90) PHYS. PROP.(Dana) OPTIC PROP.(Dana) |
![]() Links to other databases for Olivine : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Amethyst Galleries' Mineral Gallery 4 - Athena 5 - CalTech Mineral Spectroscopy 6 - GeoScienceWorld 7 - Glendale Community College 8 - Google Images 9 - Google Scholar 10 - HyperPhysics 11 - MinDAT 12 - Mineral and Gemstone Kingdom 13 - Mineralienatlas (Deutsch) 14 - Minerals in Thin Section-University of North Carolina 15 - Minerals in Thin Sections-Humboldt State 16 - Online Mineral Museum 17 - Philatelic Mineralogy 18 - QUT Mineral Atlas 19 - Ruff.Info 20 - Tradeshop.com - The Rainbow of Gems 21 - UCLA - Petrography Thin-Sections 22 - University of Colorado - Mineral Structure Data 23 - University of Texas at Austin 24 - WWW-MINCRYST Search for Olivine using: Visit our Advertisers for Olivine : A Bijoux Google Search for OlivineAdam's Minerals Google Search for Olivine Cape Minerals Google Search for Olivine Dakota Matrix Minerals Google Search for Olivine Excalibur Mineral Corp. Google Search for Olivine Exceptional Minerals Google Search for Olivine John Betts Fine Minerals Search for Olivine McDougall Minerals Google Search for Olivine Mineral News Website Link Rock and Mineral Shows Google Search for Olivine Weinrich Minerals, Inc. Google Search for Olivine Ask about Olivine here : Print or Cut-and-Paste your Olivine Specimen Label here :
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