planophyre

例句：

1. 1.The mineral is found in many rocks, including the famous Yellowstone National Park.
   这种矿物在许多岩石中被发现，包括著名的黄石国家公园。
2. 2. The planophyre has a unique crystal structure that makes it useful for polishing and cutting tools.
   这种平长石具有独特的晶体结构，使其在抛光和切割工具上非常有用。
3. 3. The study of this mineral has led to advancements in the field of geology.
   对这种矿物的研究已经推动了地质学领域的进步。