绿松石是一种自然形成的矿物，它的形成之谜还未完全解开。

Turquoise is a mineral created in a natural process that is still not completely understood.

youdao

对绿松石矿床地质特征、矿物学和岩石学特征进行了探讨，并与安徽马鞍山绿松石作对比研究。

The characteristics of the deposits geological feature, mineral feature and rocky feature are analyzed, also compared with Maanshan turquoise.

youdao

由于水中的矿物质，在火山口里的湖泊具有鲜明的绿松石色，这也是这个景点的主要特色。

Due to the minerals present in its water, the lake in the crater has a distinctive turquoise colour that is the main characteristic of this site.

youdao