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Peristerite Structure Carlsbad, Manebach, and Baveno twins Albite and pericline
twins By courtesy of the Department of Geology, The University of. As noted
above, the different distribution of the aluminum and silicon atoms in these ...
Albite is just slightly harder than orthoclase, and, in the plagioclase series, there
is a very slight decrease in hardness from albite to anorthite. Detailed study of
indentation hardness of the plagioclase feldspars reveals two inflections in the ...
Thus, the solvus shown is drawn only approximately, on the assumption that its
crest is above 700° C and near OrsoAbso, and in the knowledge that low albite
and maximum microcline show a limited solid solution of potassium and sodium,
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review