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Catalan
quars hialí
A clear quartz used in making electronic and optical equipment.
rock crystal
Catalan
quars hialí
1
At the top he found a crystal of
transparent
quartz
embedded flush with the wall.
2
Most of it acts simply as a focusing lens, which directs sunlight through a
transparent
quartz
window and into a reaction chamber.
transparent
quartz
transparent
Catalan
quars hialí
cristall de roca