donacargyrite

例句：

1. 1. The Donacargyrite mine is a major source of gemstones in the region.
   多瑙河石矿是该地区的主要宝石产地。
2. 2. The Donacargyrite mine has been producing high-quality gemstones for centuries.
   多瑙河石矿自古以来就生产高品质的宝石。
3. 3. The Donacargyrite mine is a popular tourist destination, attracting visitors from around the world.
   多瑙河石矿是一个受欢迎的旅游景点，吸引了来自世界各地的游客。