General Katoite Information![]() Ca3Al2(SiO4)3-x(OH)4x x=1.5-3 |
![]() Molecular Weight = 414.37 gm |
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Calcium 29.02 % Ca 40.60 % CaO |
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Aluminum 13.02 % Al 24.61 % Al2O3 |
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Silicon 10.17 % Si 21.75 % SiO2 |
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Hydrogen 1.46 % H 13.04 % H2O |
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Oxygen 46.33 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Ca3Al2(SiO4)1.5(OH)6 |
![]() A hydrothermal mineral in cavities in a phonolitic lava flow that erupted through an argillaceous marl. |
![]() Approved IMA 1984 |
![]() Campomorto quarry, near Montalto di Castro, Lazio, Italy. Link to MinDat.org Location Data. |
![]() Named for Akira Kato, mineralogist of the National Science Museum, Tokyo, Japan. |
![]() Katoite |
![]() ![]() Hydrogrossular |
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ICSD 202315 |
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PDF 38-368 |
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Katoite Crystallography![]() a = 12.358, Z = 8; V = 1,887.32 Den(Calc)= 2.92 |
![]() Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I a3d |
![]() By Intensity(I/Io): 2.763(1), 2.004(0.58), 2.257(0.58), |
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| Physical Properties of Katoite![]() None |
![]() Colorless, Milky white. |
![]() 2.76 |
![]() Transparent to Translucent |
![]() 5-6 - Between Apatite and Orthoclase |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Katoite![]() CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.041 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2164,KPDmeas= 0.229,KC= 0.2258 Ncalc = 1.62 - 1.66 ![]() Isotropic, n=1.632. |
| Calculated Properties of Katoite![]() Bulk Density (Electron Density)=2.78 gm/cc |
note: Specific Gravity of Katoite =2.76 gm/cc. ![]() Fermion Index = 0.0053642676 |
Boson Index = 0.9946357324 ![]() PEKatoite = 4.32 barns/electron |
U=PEKatoite x rElectron Density= 12.04 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Katoite is Not Radioactive | Katoite Classification![]() 51.04.03d.02 (51)Nesosilicate Insular SiO4 Groups Only |
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(51.04)with cations in [6] and >[6] coordination |
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(51.04.03d)Garnet group (Hydrogarnet) |
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![]() 09.AD.25 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AD -Nesosilicates without additional anions; |
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| Other Katoite Information![]() NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Katoite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Katoite using: Visit our Advertisers for Katoite : A Bijoux Google Search for KatoiteAdam's Minerals Google Search for Katoite Cape Minerals Google Search for Katoite Dakota Matrix Minerals Google Search for Katoite Excalibur Mineral Corp. Google Search for Katoite Exceptional Minerals Google Search for Katoite John Betts Fine Minerals Search for Katoite McDougall Minerals Google Search for Katoite Mineral News Website Link Rock and Mineral Shows Google Search for Katoite Weinrich Minerals, Inc. Google Search for Katoite Ask about Katoite here : Print or Cut-and-Paste your Katoite Specimen Label here :
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