Every snowflake is unique, or at least as best as we can figure out. It's probably true that no two snowflakes are alike, but the sheer number of snowflakes makes it virtually impossible to determine with certainty.
Are No Two Snowflakes Really Alike, And If Not, Why Not?
Seedlings Preschool had a - Hidden Oaks Nature Center
How do scientists know that 'no two snowflakes are alike' when all the snowflake haven't been compared with each other? - Quora
No Two Snowflakes the Same Likely True, Research Reveals
Sunny day snowflakes, except for the UKs brave future king : r/AbolishTheMonarchy
Is It True No Two Snowflakes Are Alike?
How do scientists know that 'no two snowflakes are alike' when all the snowflake haven't been compared with each other? - Quora
Is it true that no two snowflakes are identical? Office for Science and Society - McGill University
Is It True No Two Snowflakes Are Alike?