Snowflakes Small 320×281 Medium 640×562 Large 1024×900 Download Tiff Original 2400×2109 | (546.4 KB) Description A frozen moisture which falls from the atmosphere when the temperature is 32 degrees or lower. It is composed of crystals, usually in the form of six-pointed stars. Keywords crystal, snow, snowflake Galleries Rotational Symmetry, Snow, Winter Source: W. H. De Puy The People's Cyclopedia (New York: Phillips & Hunt: 1881) 1635