商品の詳細

One-of-a-kind natural emerald. You will receive a piece similar to those shown. Size: 5 to 6 inches (sizes vary) Emerald is a green variety of the mineral beryl, composed of beryllium aluminum silicate. It forms in hydrothermal veins and pegmatites where mineral-rich fluids crystallize under heat and pressure. Its green color is caused by trace amounts of chromium and sometimes vanadium within the crystal structure. These specimens typically show hexagonal crystal forms with natural inclusions, fractures, and matrix material, often mounted on a metal stand to display the raw structure. Each item is unique in shape, color, and pattern. Higher-grade pieces are selected first. Photos represent overall quality and appearance.