bieberite

例句：

1. 1.The ruby in the brooch is a rare and valuable gemstone.
   胸针上的红宝石是一种稀有且珍贵的宝石。
2. 2. The brooch is made of bieberite, which is known for its durability and beauty.
   胸针是由贝伯石制成的，这种石头以其耐用性和美丽而闻名。
3. 3. The brooch has been passed down through generations as a symbol of love and devotion.
   这个胸针代代相传，作为爱情和奉献的象征。