What are two types of crystal structures show | vedclass

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(D) Ice exhibits polymorphism, meaning it can exist in different crystal structures depending on temperature and pressure. The two most common forms a

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Cubic and hexagonal

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(D) Ice exhibits polymorphism, meaning it can exist in different crystal structures depending on temperature and pressure. The two most common forms are hexagonal ice (ice $I_h$), which is the ordinary form of ice found in nature, and cubic ice (ice $I_c$), which has a crystal structure similar to diamond. Cubic ice is typically formed by the deposition of water vapor at very low temperatures (below $140 \ K$).

What are two types of crystal structures shown by ice at different pressures?

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