alleghanyite

例句：

1. 1.The alleghanyite is a rare mineral that has been found in the mountains of western Pennsylvania.
   阿勒格尼石是一种稀有矿物，已在宾夕法尼亚州西部的山区被发现。
2. 2. The alleghanyite is known for its beautiful blue color and unique crystal structure.
   阿勒格尼石以其美丽的蓝色和独特的晶体结构而闻名。
3. 3. The alleghanyite was discovered by a geologist who was searching for new minerals in the area.
   一位地质学家在该地区寻找新矿物时发现了阿勒格尼石。