noun🔗Share熔渣，矿渣。 The slag or dross that remains after the smelting of metal from an ore."After the iron ore was melted, the scoria was skimmed off the top, leaving the pure metal below. "铁矿石熔化后，浮在表面的矿渣被撇去，留下了下面的纯金属。geologymaterialsubstanceindustryChat with AIVocabulary GamePractice Reading
noun🔗Share火山岩，浮石 Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater."After hiking near the volcano's crater, we saw a lot of black, rough scoria scattered on the ground. "在火山 crater 附近徒步后，我们看到地上散落着许多黑色粗糙的火山岩。geologymaterialChat with AIVocabulary GamePractice Reading
