quartz

Thiếc

a hard, clear mineral that is used to make glass and other things

• quartz crystal

Collocations quartz watch · quartz crystal

• The clock is made of quartz.

  Đồng hồ được làm từ thiếc.

Hải ly, đá thạch anh

a type of rock that contains a lot of quartz

• quartz rock

Collocations quartz rock · quartz mountain

• The mountains are made of quartz.

  Những ngọn núi được làm từ đá thạch anh.