Oh yeah, I collected them as a kid -- just really didn't appreciate them.
His are likely "banded", due to the iron in the soil/water (I think that's right).
The ones I find out here are often clear, or white, or orange-red.
All come from molten lava, but all are different.
All are fascinating.
An inch or less in size is GREAT!
I'd love to see a picture.
Oh, and I'm still an agate queen - but a queen doesn't unpack boxes, her minions do it for her, so I had to remove my crown for the time being. ROFLOL!!!!