1, color: Tourmaline, an old mineral, usually has more vivid and rich colors, including red, blue and green, which is more attractive in jewelry design and matching. In contrast, the black beauty tourmaline is dull in color, although it also has its unique aesthetic feeling, but it may be slightly inferior in attracting attention.

2. Purity and quality: Old tourmaline is usually of high purity, with less inclusions in the crystal and better quality. In contrast, the purity of black beauty tourmaline may be slightly lower, and there are many inclusions in the crystal, which affects its overall quality.

3. Historical and cultural value: The old mine tourmaline has a long history and cultural value and is deeply loved by the royal family and nobles. This historical background makes the old mine tourmaline more valuable for collection and investment in the market. Although the black beauty tourmaline has its uniqueness, it may not be as good as the old mine tourmaline in historical and cultural value.