I am certainly no expert in identifying stones but based on my research this cabochon appears to match what I have seen identified as Crazy Lace Agate and appears to maybe even be more specific to hailing from Mexico.
20% of this sale will go to Dig Deep and their Indigenous-led Navajo Water Project Organization which delivers clean running water to over 250 Navajo families. Will be tallied at the end of every month and posted for transparency!
100% vegan/fabric moss green cord.
Measures 19” long.