Curious Patterns: Can You Guess What These Might Be?

Can anybody guess what these patterns could be?

Regards,
Elamurugu

My guess is that these are snowflakes! When observed with a microscope, these patterns can be seen!

Hi All
As most of you guessed these are the different patterns of "Snowflakes".
These patterns are collected and photographed by "Wilson A. Bentley" who lived from 1865–1931. He is the person who went on to prove that "No two snowflakes are alike".
Fascinated by the snowflakes this farmer photographed snowflakes with a Microscope attached to a Bellows camera. He is used to catch snowflakes on a blackboard and rush to photograph them with his customized camera.
His works can be seen @ www.snowflakebentley.com
Regards
Elamurugu

Hi Elamurugu,

That was really informative and useful. In fact, this is the first time I have come across information about this snowflake.

Regards, MPMS