diabasis

例句：

1. 1.Diabasis is a rare mineral that occurs naturally in very small amounts.
   Diabase是一种自然存在的稀有矿物，含量非常小。
2. 2. The diabase deposit was discovered by accident during a geological survey.
   在一次地质调查中偶然发现了这个diabase矿床。
3. 3. Diabase is used as an alternative to concrete in construction because of its strength and durability.
   由于其强度和耐久性，diabase被用作建筑中的混凝土替代品。