The New Encyclopaedia Britannica, Volume 29Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 47
... fluorine- bearing vapours given off during the last stages in the crystallization of igneous rocks . It typically occurs in cavities in rhyolites and granite , in pegmatite dikes , and in high - tem- perature veins . Often associated ...
... fluorine- bearing vapours given off during the last stages in the crystallization of igneous rocks . It typically occurs in cavities in rhyolites and granite , in pegmatite dikes , and in high - tem- perature veins . Often associated ...
Page 484
... fluorine than those of Kilauea . lava viscosity and eruption influence 9 : 227c primeval atmosphere and gas similarity 6 : 711b volcanic glass , glassy rocks formed from lava or magma that has a chemical composi- tion close to granite ...
... fluorine than those of Kilauea . lava viscosity and eruption influence 9 : 227c primeval atmosphere and gas similarity 6 : 711b volcanic glass , glassy rocks formed from lava or magma that has a chemical composi- tion close to granite ...
Page 779
... fluorine and oxygen , or groups containing fluorine or oxygen , in which xenon assumes valence numbers ( numbers that represent the combining capacities of ele- ments ) of +2 , +4 , +6 , and +8 . Xenon reacts directly only with fluorine ...
... fluorine and oxygen , or groups containing fluorine or oxygen , in which xenon assumes valence numbers ( numbers that represent the combining capacities of ele- ments ) of +2 , +4 , +6 , and +8 . Xenon reacts directly only with fluorine ...
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