Quartz is a common mineral found in many types of rocks.
Кварц - это распространенный минерал, встречающийся во многих типах пород.
Definitions
A hard, crystalline mineral composed of silicon and oxygen atoms, commonly found in the Earth's crust and used in various applications such as jewelry and electronics.
The geologist found a large piece of quartz embedded in the rock formation.
A type of watch or clock that uses a quartz crystal to keep time, known for its accuracy.
She preferred wearing a quartz watch because it required less maintenance than a mechanical one.