Ключевые слова: abstract, blue, bright, calcite, close up, collection, color, colorful, crystal, crystals, educational subject, fluor, fluorescent, fluorescent light, gem, gemmology, gemstone, geologists, geology, geometry, jewelry, luminescent, macro, manganese, manganoan, manganocalcite, material, mineral, mineral stone, mining natural resources, natural, nature, neon, pattern, phosphorescence, pink, rock, rock object, rough, science, shape, shiny, stone, stone object, texture, ultraviolet, ultraviolet light, uncut gemstone, volcano,