Dumbbells and hexagons....

After the last snow I checked out my new snowflake photography setup, and finally tonight had a chance to check it out!  This is actually a composite, with some garbage removed from the background.  I really don't understand the colors--the lighting is from both the incandescent lamp in the microscope and an external flash.

While most are simple (ha!) hexagons, there are several "dumbbells" present.  Needless to say, I will be looking for some better snowflakes in the coming days!  These were collected at the start of a fairly heavy snow with an outside temperature of 25F.