Identifying Rocks and Tumbling Advice

My son and I went and found some rocks we thought were interesting. I was wondering if anyone could help identify what type of rocks these are and whether they're good for tumbling.

Tumbled Rocks Not Shiny? How to Get a Perfect Polish – Rockhound

Michigan Rockhounds I bought some Petoskey stones for gifts for

Identifying Rocks

Identifying rocks/will it tumble? : r/RockTumbling

Rock Tumbling Before and After: A Guide to Polishing Stones

Best Rocks for Tumbling: Why Some Work & Others Don't – Rockhound

Best Rocks for Tumbling: Why Some Work & Others Don't – Rockhound

Rock Tumbling Secrets - Northwest Treasures

Identifying rocks/will it tumble? : r/RockTumbling

Best Rocks for Tumbling in a Rock Tumbler

13 Clever Tips & Tricks For Rock Tumbling You Should Know – How to