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 is the most abundant mica in the quartz-rich regions and exhibits a weak planar foliation. Quartz and feldspar crystals are up to 0.5 mm in size. The mica-rich lithology is dominated by muscovite, with minor (<20 vol%) biotite, quartz and plagioclase. Mica grains are upto 2 mm in length and exhibit a well developed planar foliation. Garnet porphyroblasts are present in both lithologies.