Как по Английски будет кварцевый

A hard mineral consisting of silica, found widely in igneous and metamorphic rocks and typically occurring as colourless or white hexagonal prisms. it is often coloured by impurities (as in amethyst, citrine, and cairngorm).

Of the nature of quartz; resembling quartz; consisting of or rich in quartz.

Containing or yielding quartz.

Composed mainly or entirely of quartz; of the nature of quartz.

= quartzose .