quartz crystal

noun

1. a thin plate or rod cut in certain directions from a piece of piezoelectric quartz and accurately ground so that it vibrates at a particular frequency

Example Sentences

Another 'phylactery' consisted of a tiny bag of hoddentin, holding a small quartz crystal and four feathers of eagle-down.

From Project Gutenberg

But, as we have said, nothing is more effective than the white quartz crystal when found suitable.

From Project Gutenberg

She was a simple little thing, and her heart was as pure as quartz crystal.

From Project Gutenberg

Armlet of quartz crystal used in the formation of the medicine water of secret orders.

From Project Gutenberg

That is because it is always found combined with oxygen in the form of silica as quartz crystal or sand.

From Project Gutenberg