Ключевые слова: abstract, backdrop, chemical, citric acid, close up, closeup, colorful, countryside, crystal, crystal structure, crystalline, detail, facet, facing, illuminated, light, macro, magnification, micro crystal, microcrystal, microscopic, mineral, multicolored, nature, pattern, polarised light, polarized light, prismatic, refraction, scholarship, science, sodium citrate, structure, translucent, transmitted light, trisodium citrate,