- Midland, Cabarrus County, North Carolina, United States1
- Milos, Nisos, Cyclade Islands, Aegean Islands, Greece1
- Mount Vesuvius, Napoli province, Campania, Italy1
- Neidermennig, Rheinland, Germany1
- New York, New York County, New York, United States1
- North Stafford, Connecticut, United States1
- Norwich, Hampshire County, Massachusetts, United States1
- Norwich, New London County, Connecticut, United States1
- Perkiomen, Pennsylvania, United States1
- Plymouth, Massachusetts, United States1
- Richmond, Berkshire County, Massachusetts, United States1
- San Miguel Island, Azores, Portugal1
- Savodinski Mine, Russia, Siberia1
- South Carolina, United States1
- Spartanburg District, Spartanburg County, South Carolina, United States1
- Stavern, Vestfold, Norway1
- Steiermark, Austria1
- Strontian, Highland, Scotland, United Kingdom1
- Trumbull, Fairfield County,Connecticut, United States1
- Vychodocesky, Czech Republic1