Ключевые слова: close up, collection, crystal, crystalline, decorative, fools gold, gem, gemmological, gemmology, gemological, gemology, gemstone, geological, geology, golden, gray, gray background, iron, iron pyrite, little, macro, macro shooting, material, metal, metallic, mineral, native, natural, nature, nugget, object, ore, ornamental, pebble, piece, pyrite, raw, rock, rough, sample, small, specimen, stone, structure, surface, texture, textured, white, white background, yellow,