Betts Mine, Plainfield MA
This location contains Spessartine, Almandine Garnets, Rhodochrosite, Pyrite, Pryyhortite, Calco-Pyrite, Quartz
One of the few manganese mines located in the North East. It was last mined in the middle 20th century; it is the home of the MA state gemstone Rhodonite. Also found in this locality are spessartine and almandine garnets, rhodochrosite, pyrite, pyrrhotite, Calco-pyrite, and many many more minerals.