Ключевые слова: background, brown, cairngorm, close, cobble, collection, crystal, crystalline, dark, gem, gemmology, gemology, gemstone, geological, geology, isolated, little, macro, material, mineral, morion, natural, nature, object, ore, ornamental, pebble, piece, quartz, rauchquarz, rauchtopaz, rock, sample, shooting, small, smoky, specimen, stone, structure, surface, textured, topaz, transparent, up, white,