mansjoite

例句：

1. 1.The black cloudstone is a mineral that is often used in jewelry making.
   黑云母是一种常用于珠宝制作的矿物。
2. 2. The mansjoite crystals are known for their beautiful iridescent colors.
   黑云母晶体以其美丽的彩虹色而闻名。
3. 3.The mansjoite mine is one of the largest in the world, producing high-quality mica.
   黑云母矿是世界上最大的之一，生产高质量的云母。