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.
Interesting Facts. Biotite mica is sometimes called iron mica because it is more iron-rich than phlogopite. It is also sometimes called black mica as opposed to white mica (muscovite) â both form in some rocks, in some instances side-by-side. Biotite has radioactive elements in it that age used to figure out how old the mineral is.