CHI211jr Chinese Agate, Middle-Class Mine Plume Agate and blue-gray coloring with quartz

and blue-gray coloring with quartz inclusions

A tongue has a rounded rectangular shape as the base and three distinct surfaces as the dome

white and blue coloring with banding

simple and didactic

Chapter 4: When Geodes are Gems

CHI211jr Chinese Agate, Middle-Class Mine Plume Agate and blue-gray coloring with quartzThis is a polished specimen featuring yellow orange agate. 6 cm x 5. 2 cm 0. 32 lbs Agates from the Middle Class mine show a broad range of colors including red, yellow, purple, brown, blue, and black. Agates from the Middle Class mine also often contain druzy pockets with hematite and calcite crystals. Agates from this mine also contain a higher percentage of heat and stress fractures from the mining process and are considered less desirable so the