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Term: crystal
Literally meaning: the state of standing cold
Origin: Anc Greek
κρύο/cryo(=coldice cold)
Crystals derived by Greek word meaning “ice cold” because it was originally thought that crystals were a type of ice that was so cold it would never melt. Crystals were used in all ancient cultures. Brother of Moses, Aaron was instructed by God to make breast plate from particular crystals in order to protect him. Many civilizations have used crystals also in medicine, magic and rituals.
A crystal  is
1. the solid formed by a repeating pattern of atoms, ions, or molecules with many sides shape
2. a high quality clear and colorless glass
Most crystals are formed mainly from silicon and oxygen and when they compined they form silicon dioxide, which is also known as quartz.  

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