A Piece of Glass:

[Indie]

Translucent green, it held no sparkle;
edges smooth from pounding waves.
It lay there on the ebb, a memory.
Waiting for life, waiting, waiting. For some reason I see ... at the end of this line, like an after thought or hush. IMO the two end waiting's jar the flow, odd numbers work better

Along with empty razor shells. I like the imagery of this
A cuttlefish bone and lots of little ones; This line is confusing, ambiguous. What lot's of little one's are you referring to?
miniature ice cream cones, memories-- This line seems out of place with imagery of empty razor shells. Very childlike expression
Waiting for life, waiting, waiting.

Treasures washed in tide pools
where crabs no bigger than a finger nail
scurried like Spanish dancers. Memories;Love the imagery, but the flow jars. Maybe a rephrasing
Waiting for life, waiting, waiting.

The keepsake kept, is still as dull I got the impression that the keepsake was special, and kept is such a bland word. I would have suggested treasured, but treasure is used in the preceding verse
as when it lay upon the Southport sands
Now it's worn around my neck. it's isn't needed
A memory--

Hope this is helpful
Indie