snowflake is single ice crystal or an aggregation of ice crystals which falls through the Earth's atmosphere. In the directory it is listed under Cloud in United States. The official website is snowflake.com.
About snowflake
A snowflake is a single ice crystal that is large enough to fall through the Earth's atmosphere as snow. Snow appears white in color despite being made of clear ice. This is because the many small crystal facets of the snowflakes scatter the sunlight between them.