Good Morning, ID!
I think you're right, very Pink.
Yes, it's quartz or quartzite, but you don't need the 'breccia' part. Breccia is a little different. And, surprisingly enough, as you may be finding out, quartz can be a hard rock to tumble. It beats itself up as much as polishes. Can be very tricky to get a good batch. John, my personal tumbling expert, will tumble quartz up to the pre-polish stage and then do the last steps in a vibratory tumbler.

Got to get out and look for some rocks. Have a great Sunday!

just for reference on what Brecciated Quartzite would look like. This specimen is from Baraboo Wisconsin.

Thanks!! I need all the help I can get and see.