Ключевые слова: adornment, aggregate, brown, calcite, citrine, cobble, collection, crystal, crystalline, druse, gem, gemstone, geology, industry, jewels, macro, mineral, mineralogy, mining, natural, nature, object, ore, pebble, pink, precious, quartz, rock, rough, semiprecious, set, shiny, silica, silicate, souvenir, stone, structure, texture, transparent, white, yellow,