Ophicalcitum

例句：

1. 1. The ophicalcitum was carefully polished to reveal its inner beauty.
   这颗珍珠母被仔细打磨，以展现其内在的美丽。
2. 2. Ophicalcitum is a valuable gemstone that has been prized for centuries.
   珍珠母是一种珍贵的宝石，几个世纪以来一直受到珍视。
3. 3.The ophicalcitum was used in ancient times as a symbol of wealth and power.
   在古代，珍珠母用作财富和权力的象征。