microgranite

例句：

1. 1. The microgranite in the park is a popular spot for picnicking.
   公园里的微晶岩是野餐的热门地点。
2. 2. The microgranite formation is an important part of the geological record.
   微晶岩形成是地质记录的重要组成部分。
3. 3. The microgranite has a unique texture that makes it attractive to collectors.
   微晶岩具有独特的纹理，这使得它对收藏家有吸引力。