A snowflake is made of lots ice crystals and can have as many a 200 ice crystals.
Snowflakes are most of the time six-sided objects and form within clouds where the temperature is below freezing.
The tiny ice crystals form around very small bits of dirt that are placed in the atmosphere by the wind.
As these crystals get larger, they become heavy enough that they are able to fall toward the ground.
Yes it is true, there are no two snowflakes that are alike even with all the snow that falls.
Depending on how the ice crystals form will determine which type of snowflake is created.
In the following picture are the various types on snowflakes that can form.
TOP (Left to Right):
1. Stellar Dendrites: Six main branches and many sidebranches.
2. Irregular Crystals: Snowflakes have a hard life - many arrive in bad shape.
3. Sectored Plates: Ice ridges divide plate-like arms into sections.
4. Spatial Dendrites: Many individual ice crystals jumbled together.
BOTTOM (Left to Right):
5. Hollow Columns: Hexagonal hollow columns - like a wooden pencil.
6. Rimed Crystals: Cluttered with water droplets that freeze onto them.
7. Needles: Long, thin columnar crystals that look like needles.
8. Capped Columns: Start out as columns, but switch to plate-like growth.
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