The New Encyclopaedia Britannica, Volume 23Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 199
... chemical variations , called solid - solution series , be- tween fluorapatite and chlorapatite and be- tween fluorapatite and hydroxylapatite . Man- ganese can replace up to 10 percent of the cal- cium in fluorapatite derived from ...
... chemical variations , called solid - solution series , be- tween fluorapatite and chlorapatite and be- tween fluorapatite and hydroxylapatite . Man- ganese can replace up to 10 percent of the cal- cium in fluorapatite derived from ...
Page 475
... chemical prop- erties of naturally occurring materials . Usual- ly one or more trace elements are measured in rock , soil , vegetation , stream sediment , or wa- ter samples that have been collected in a sys- tematic fashion for the ...
... chemical prop- erties of naturally occurring materials . Usual- ly one or more trace elements are measured in rock , soil , vegetation , stream sediment , or wa- ter samples that have been collected in a sys- tematic fashion for the ...
Page 757
... chemical wood pulp . characteristics and use 13 : 976e group ( geology ) : see rock - stratigraphic units . group , in chemistry , a set of chemical ele- ments in the same vertical column of the peri- odic table . The elements in a ...
... chemical wood pulp . characteristics and use 13 : 976e group ( geology ) : see rock - stratigraphic units . group , in chemistry , a set of chemical ele- ments in the same vertical column of the peri- odic table . The elements in a ...
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