raphisiderite

例句：

1. 1. The greenstone necklace is one of the most valuable pieces in her collection.
   这个绿松石项链是她收藏中最珍贵的一件。
2. 2. The ancient city was buried under layers of greenstone and marble.
   这座古城被绿松石和大理石层层覆盖。
3. 3.The greenstone mines are a major source of revenue for the local economy.
   这些绿松石矿是当地经济的主要收入来源。