Ключевые слова: abundant, background, black, bladeshaped, calcium, cements, close, closeup, core, crystal, crystallization, cube, detail, earth, element, fifth, geography, geology, gypsum, horizontal, hydrated, industry, isolated, macro, metaphysical, mineral, mineralogy, mining, most, nature, pattern, petrography, pigment, plasters, rock, sample, sedimentary, selenite, shiny, shot, stone, studio, sulfate, sulphate, texture, textured, translucent, transparent, white,