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.
Sunny day snowflakes, except for the UKs brave future king : r/AbolishTheMonarchy
Wilson Bentley Quote: “No two snowflakes are alike”
Scrunch time: The peculiar physics of crumpled paper
Seedlings Preschool had a - Hidden Oaks Nature Center
Why no two snowflakes are the same - The Washington Post
Snowflakes - No Two Alike?
Everyone says that no two snowflakes are the same, but is it true? - The Washington Post
Are No Two Snowflakes Really Alike, And If Not, Why Not?
Is it true that no two snowflakes are identical? Office for Science and Society - McGill University
How do scientists know that 'no two snowflakes are alike' when all the snowflake haven't been compared with each other? - Quora