In any case, the preponderance of evidence suggests that the population of the USSR didnât buy into the filmsâ pulpy propaganda so much as put up with it and maybe even enjoyed it for its simple escapist chicanery. Cosmic Voyage was almost certainly more fun than it was politically inspirational.
biotite. n. 1. (Minerals) a black or dark green mineral of the mica group, found in igneous and metamorphic rocks. Composition: hydrous magnesium iron potassium aluminium silicate. Formula: K(Mg,Fe)3(Al,Fe)Si3O10(OH)2.
18. How are the minerals biotite mica and muscovite mica di erent? A. Biotite mica is colorless, but muscovite mica is not. B. Biotite mica contains iron and/or magnesium, but muscovite mica does not. C. Muscovite mica scratches quartz, but biotite mica does not. D. Muscovite mica cleaves into thin sheets, but biotite mica does not. 19.