Ключевые слова: abstract, backdrop, chemical, chile salpeter, close up, closeup, colorful, countryside, crystal, crystal structure, crystalline, detail, facet, facing, fertilizer, illuminated, light, macro, magnification, micro crystal, microcrystal, microscopic, mineral, multicolored, nature, nitratine, nutrient, pattern, polarised light, polarized light, potassium nitrate, prismatic, refraction, salpeter, scholarship, science, sodium nitrate, structure, translucent, transmitted light,