Ключевые слова: black, closeup, contrast, crude, crystal, crystalline, crystallization, crystals, cutout, dark, erect, faceted, facets, gem, geology, glass, glassy, isolated, jewel, jewelry, jewels, macro, mineral, mineralization, mineralogy, minerals, morion, mountain, natural, nature, object, obscured, pebble, precious, quartz, raw, rock, semiprecious, silica, smoke, smoked, smoky, stone, stones, structure, white,