These specimens are from Mexico. Beautiful irridescent colors in these specimens. M101 Chert specimens from the Savannah River, Georgia Commonly called Savannah River Agate, egg sized pieces to football size. Excellent for cabbing, tumbling, or specimen. Reds, browns, cream, blue, green, grays.
Some pieces have druse spots on the outside.
Some have chalky-like crust on the outside with nice, colorful chert on the inside. Andalusite crystals with graphite inclusions, which is then called Chiastolite. These nice specimens of Chiastolite are from China. These crystals are from China. Several sizes to choose from.