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.
Biotite (black mica), if present in significant amounts, is customarily added to the hornblende content. Peridotite includes a wide range of rock compositions that are dominated by olivine. Peridot, the jeweler's name for gem-quality olivine, gives rise to the rock name. Dunite is almost entirely olivine. The other two rock names, pyroxenite and hornblendite, are self-explanatory.