Question

crystals of the substance in the watches are called​

Answer 1

Answer:

Quartz, made up of silica and oxygen, is one of the most common minerals on Earth. Billions of people use quartz every day, but few realize it because the tiny crystals they use are hidden in their watches and clocks.

Answer 2

BONJOUR!!!

Answer:

Crystals of the substance in the watches are called Quartz (made up of silica and oxygen).

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