Appl Note 101

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                                Powder Diffraction of Asbestos



Common Phases


Mineral Name Chemical Formula
Tremolite Ca2(Mg,Fe)5Si8O22(OH)2
Anthophyllite Mg2(Mg,Fe2+)7Si8O22(OH)2
Actinolite (Ca,Fe)2Mg5Si8O22(OH)2
Riebeckite Na2(Mg,Fe2+)3Fe3+2Si8O22(OH)2
Grunerite (Mg,Fe2+)7Si8O22(OH)2
Cummingtonite (Mg,Fe2+)7Si8O22(OH)2



Chrysolite (Mg,Fe)3Si2O5(OH)4



Phase Identification

Below  you find the calculated diffraction patterns some of asbestos minerals: just indication of complexity of crystal chemistry of amphiboles.


Hawthorne, F.C.;Grundy, H.D. The crystal chemistry of the amphiboles: IV. X-Ray and neutron
refinements of the crystal structure of tremolite. Canadian Mineralogist (1976), 14, 334-345


Walitzi, E.M.;Walter, F.;Ettinger, K. Verfeinerung der Kristallstruktur von Anthophyllite vom  Ochsenkogel/Gleinalpe, Oesterreich Zeitschrift fuer Kristallographie (149,1979-) and (1989), 188, 237-244


Urusov, V.S.;Zver'kova, O.N.;Yamnova, N.A.;Polosin, A.V. Complex refinement of the structure of actinolite. Vestnik Moskovskogo Universiteta, Geologiya (1987), 1987, 43-53

Riebeckite (crocidolite)

Hawthorne, F.C. The crystal chemistry of the amphiboles. VIII. The crystal structure and site chemistry of fluor-riebeckite. Canadian Mineralogist. (1978), 16, 187-194


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AN-1023 Powder diffraction of Rocks XRD.US
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