General Kaolinite Information![]() Al2Si2O5(OH)4 |
![]() Molecular Weight = 258.16 gm |
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Aluminum 20.90 % Al 39.50 % Al2O3 |
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Silicon 21.76 % Si 46.55 % SiO2 |
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Hydrogen 1.56 % H 13.96 % H2O |
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Oxygen 55.78 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Al2Si2O5(OH)4 |
![]() Secondary mineral derived from the wathering of alumino-silicate minerals. |
![]() Valid Species (Pre-IMA) 1930 |
![]() Kao-Ling, China. Link to MinDat.org Location Data. |
![]() Named after the locality. |
![]() Kaolinite + Pronunciation |
![]() ![]() Pianlinite - Disordered |
| | Kaolinite Image
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Kaolinite Crystallography![]() a:b:c =0.5755:1:0.8253 |
![]() a = 5.14, b = 8.93, c = 7.37, Z = 2; alpha = 91.8°, beta = 104.5°, gamma = 90.016° V = 327.35 Den(Calc)= 2.62 |
![]() Triclinic - PedialH-M Symbol (1) Space Group: P1 |
![]() By Intensity(I/Io): 7.17(1), 1.49(0.9), 3.58(0.8), |
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| Physical Properties of Kaolinite![]() {001} Perfect |
![]() White, Brownish white, Grayish white, Yellowish white, Grayish green. |
![]() 2.6 |
![]() Transparent to translucent |
![]() Earthy - Dull, clay-like fractures with no visible crystalline affinities, (e.g. howlite). |
![]() Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
![]() 1.5-2 - Talc-Gypsum |
![]() Non-fluorescent. |
![]() Earthy (Dull) |
![]() white |
| Optical Properties of Kaolinite![]() CI meas= 0.043 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.05 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2146,KPDmeas= 0.2163,KC= 0.226 Ncalc = 1.59 ![]() Biaxial (-), a=1.553-1.563, b=1.559-1.569, g=1.56-1.57, bire=0.0070, 2V(Calc)=44, 2V(Meas)=24-50. Dispersion none. |
![]() colorless or pale yellow. |
![]() buff or dark buff. |
| Calculated Properties of Kaolinite![]() Bulk Density (Electron Density)=2.62 gm/cc |
note: Specific Gravity of Kaolinite =2.60 gm/cc. ![]() Fermion Index = 0.01 |
Boson Index = 0.99 ![]() PEKaolinite = 1.48 barns/electron |
U=PEKaolinite x rElectron Density= 3.87 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Kaolinite is Not Radioactive | Kaolinite Classification![]() 71.01.01.02 (71)Phyllosilicate Sheets of Six-Membered Rings |
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(71.01)with 1:1 layers |
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(71.01.01)Kaolinite group |
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![]() 09.ED.05 09 - SILICATES (Germanates) |
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09.E - Phyllosilicates |
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09.ED -Phyllosilicates with kaolinite layers |
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| Other Kaolinite Information![]() Links to other databases for Kaolinite : |
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Athena 6 - EUROmin Project 7 - Ecole des Mines de Paris 8 - Franklin Minerals(Dunn) 9 - GeoScienceWorld 10 - Google Images 11 - Google Scholar 12 - Handbook of Mineralogy (MinSocAm) 13 - Handbook of Mineralogy (UofA) 14 - MinDAT 15 - Mineralienatlas (Deutsch) 16 - Online Mineral Museum 17 - QUT Mineral Atlas 18 - Ruff.Info 19 - Scandinavian mineral gallery 20 - WWW-MINCRYST Search for Kaolinite using: Visit our Advertisers for Kaolinite : A Bijoux Google Search for KaoliniteAdam's Minerals Google Search for Kaolinite Cape Minerals Google Search for Kaolinite Dakota Matrix Minerals Google Search for Kaolinite Excalibur Mineral Corp. Google Search for Kaolinite Exceptional Minerals Google Search for Kaolinite John Betts Fine Minerals Search for Kaolinite McDougall Minerals Google Search for Kaolinite Mineral News Website Link Rock and Mineral Shows Google Search for Kaolinite Weinrich Minerals, Inc. Google Search for Kaolinite Ask about Kaolinite here : Print or Cut-and-Paste your Kaolinite Specimen Label here :
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