Ice

Ice is water that is frozen into a solid state, typically forming at or below temperatures of 0 °C, 32 °F, or 273. 15 K. It occurs naturally on Earth, on other planets, in Oort cloud objects, and as interstellar ice.

As a naturally occurring crystalline inorganic solid with an ordered structure, ice is considered to be a mineral.
Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY 2.0

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