“矿物的”用英语怎么说？

他采集了各种岩石和矿物的样品.He collected specimens of all kinds of rocks and minerals.硅酸盐矿物的特点是耐熔和难以分离.Silicate minerals are characteristically refractory and difficult to break down.此硬度计的依据是矿物的相对研磨能力.This scale is based on the relat...