We have seen a variety of different tile patterns over the years.

Green and aqua tiles glow under blacklight

Green and aqua tiles under normal light
Assorted patterns and colors

Frank Lloyd Wright "Flower" pattern

Dirty Frank Lloyd Wright "Flower" pattern
Green Dew Drops and Solarized Pink Waves (Clean (L), Dirty (R))
Tudor and Pinwheel
Clear Dew Drop
Clear Wave

Luxfer logo tile

Snowflake pattern

Dirty Snowflake pattern and dirty flats

Super thick NYC pink flat vs California pink flat vs Montana pink flat

NYC pink flats - graded