The morning sunrise highlights these seemly random ice formations.
But structurally they are not random at all.
A naturally occurring crystalline inorganic solid with an ordered structure, ice is considered a mineral. When ice melts, it absorbs as much energy as it would take to heat an equivalent mass of water by 80 °C. The most common phase transition to ice occurs when liquid water is cooled below 0°C ( 32°F) at standard atmospheric pressure. It can also deposit from vapor with no intervening liquid phase, such as in the formation of frost.
An unusual property of ice frozen at atmospheric pressure is that the solid is approximately 9% less dense than liquid water. Ice is the only known non-metallic substance to expand when it freezes. (From Wikipedia).
Image captured with Lumix GF-1 with 20mm F 1.7 lens.
@ 2011 PhotoPro
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