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Kaolinite Mineral Data + |
General Kaolinite Information |
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| Al2Si2O5(OH)4 | |||
| Molecular Weight = 258.16 gm | |||
| Aluminum 20.90 % Al 39.50 % Al2O3 | |||
| Silicon 21.76 % Si 46.55 % SiO2 | |||
| Hydrogen 1.56 % H 13.96 % H2O | |||
| Oxygen 55.78 % O | |||
| ______ ______ | |||
| 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. | |||
| Pianlinite - Disordered | |||
Kaolinite Image | |||
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Kaolinite Crystallography |
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| 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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Mouse |
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Physical Properties of Kaolinite |
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| [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 | |||
| None. | |||
| Earthy (Dull) | |||
| white | |||
Optical Properties of Kaolinite |
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| 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 |
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| 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. | |||
| buff or dark buff. | |||
Calculated Properties of Kaolinite |
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relectron=2.62 gm/cc |
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| Fermion Index = 0.01043 Boson Index = 0.98957 |
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PEKaolinite = 1.48 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kaolinite is Not Radioactive |
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Kaolinite Classification |
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| 71.1.1.2 (71)Phyllosilicate Sheets of Six-Membered Rings | |||
| (71.1)with 1:1 layers | |||
| (71.1.1)Kaolinite group | |||
| VIII/H.25-10 VIII - Silicates | |||
| VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups | |||
| VIII/H.25 - Kaolinite group | |||
Other Kaolinite Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | |||
| 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 - Google Images 10 - Google Scholar 11 - Handbook of Mineralogy (MinSocAm) 12 - Handbook of Mineralogy (UofA) 13 - MinDAT 14 - MinMax(Deutsch) 15 - MinMax(English) 16 - Mineralienatlas (Deutsch) 17 - QUT Mineral Atlas 18 - Ruff.Info 19 - Scandinavian mineral gallery 20 - WWW-MINCRYST Search for Kaolinite using: Visit our Advertisers for Kaolinite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich 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 The GeoZone Wrights Rock Shop Translate Kaolinite Mineral Data : Ask about Kaolinite here : Print or Cut-and-Paste your Kaolinite Specimen Label here :
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