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Kornerupine Mineral Data + |
General Kornerupine Information |
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| (Mg,Fe++)4(Al,Fe+++)6(SiO4,BO4)5(O,OH)2 | |||
| Molecular Weight = 649.39 gm | |||
| Magnesium 13.10 % Mg 21.72 % MgO | |||
| Aluminum 23.68 % Al 44.75 % Al2O3 | |||
| Iron 1.72 % Fe 2.21 % FeO | |||
| Silicon 16.00 % Si 34.23 % SiO2 | |||
| Boron 0.50 % B 1.61 % B2O3 | |||
| Hydrogen 0.16 % H 1.39 % H2O | |||
| Oxygen 44.84 % O | |||
| ______ ______ | |||
| 100.00 % 105.91 % = TOTAL OXIDE | |||
| Mg3.5Fe2+0.2Al5.7(SiO4)3.7(BO4)0.3O1.2(OH) | |||
| Metamorphic and alluvial rocks. | |||
| Valid Species (Pre-IMA) 1884 | |||
| Fiskernaes, SW Greenland. Link to MinDat.org Location Data. | |||
| Named after the Danish geologist, A. N. Kornerup (1857-1881). | |||
| ICSD 68636 | |||
| PDF 29-852 | |||
| Prismatine | |||
Kornerupine Image | |||
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Kornerupine Crystallography |
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| a:b:c =1.1669:1:0.4885 | |||
| a = 16.041, b = 13.746, c = 6.715, Z = 4; V = 1,480.65 Den(Calc)= 2.91 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C mcm | |||
| By Intensity(I/Io): 2.62(1), 3.008(1), 2.104(0.6), | |||
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Mouse |
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Physical Properties of Kornerupine |
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| [110] Indistinct | |||
| Brown, Colorless, Green, Greenish yellow, Yellow. | |||
| 3.3 - 3.34, Average = 3.32 | |||
| Translucent to opaque | |||
| Brittle - Uneven - Very brittle fracture producing uneven fragments. | |||
| Massive - Fibrous - Distinctly fibrous fine-grained forms. | |||
| Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |||
| 7 - Quartz | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| white | |||
Optical Properties of Kornerupine |
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| CI meas= 0.075 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.055 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2317,KPDmeas= 0.2031,KC= 0.2196 |
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| Biaxial (-), a=1.66-1.671, b=1.673-1.683, g=1.674-1.684, bire=0.0130-0.0140, 2V(Calc)=30-32, 2V(Meas)=3-48. Dispersion r > v or r < v. | |||
| colorless, green, or green. | |||
| colorless, pale brownish yellow, or pale yellowish green. | |||
| pale brownish green, green, or light amber. | |||
Calculated Properties of Kornerupine |
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relectron=2.88 gm/cc |
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| Fermion Index = 0.02214 Boson Index = 0.97786 |
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PEKornerupine = 2.09 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kornerupine is Not Radioactive |
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Kornerupine Classification |
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| 58.1.1.1 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups | |||
| (58.1)with cations in [4] and higher coordination; single and double groups (n=1,2) | |||
| (58.1.1)Dana Group | |||
| VIII/B.31-10 VIII - Silicates | |||
| VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, with beryllium and boron | |||
| VIII/B.31 - Kornerupine - Harkerite series | |||
Other Kornerupine Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic2) | |||
| Links to other databases for Kornerupine : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - CalTech Mineral Spectroscopy 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 -Mineralienatlas (Deutsch) 15 -QUT Mineral Atlas 16 - Tradeshop.com - The Rainbow of Gems 17 - WWW-MINCRYST 18 -École des Mines de Paris Search for Kornerupine using: Visit our Advertisers for Kornerupine : 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 Kornerupine Mineral Data : Ask about Kornerupine here : Print or Cut-and-Paste your Kornerupine Specimen Label here :
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