Ключевые слова: black, close up, collection, crystal, crystalline, decorative, fibrous, gemmological, gemmology, gemological, gemology, gemstone, geological, geology, gray, gray background, igneous, little, macro, macro shooting, magnesium mica, material, mica, mineral, natural, object, ore, ornamental, peridotite, phlogopite, piece, raw, rock, rough, sample, small, specimen, stone, structure, surface, texture, textured, white, white background,