Help identifying rock/mineral

[Kathleen Anne]

Does anyone know what this is?

 

Amazon Forum Fav 👍

How to Research for Treasure Hunting and Metal Detecting From Lead Generation to Vetting - Grab it through Amazon!

[DDancer]

Chalcedony primarily though it may be agatized, banding may be present inside if you have it slabbed. The vug, where your rounded bits are, show druzzy quartz and also indicate there maybe banded agate inside the stone.