1. Black sapphire:
Black sapphire is a kind of black stone with delicate texture and unique luster. It belongs to metamorphic rocks, mainly composed of silicate minerals and pyroxene, and also contains some trace metal elements. Black sapphire can be made into jewelry, ornaments, ornaments and so on. Because of its deep color, simplicity and generosity, it is deeply loved by people.
2. Mo Yu:
Moyu is a black or dark green stone, and it is a metamorphic rock dominated by carbonate minerals. The surface of jet is smooth and delicate, and it is often used to make inkstones and pen holders in Four Treasures of the Study. Because of its close relationship with calligraphy and painting culture, it is highly respected.
Which is better depends on your own preferences and needs. If you like black and unique luster, you can choose black sapphire; If you have special feelings for calligraphy culture, or like the color and texture of jet, you can choose jet.