- Franklin, Franklin Mining District, Sussex County, New Jersey, United States3
- Frankstown, Blaire (Huntingdon) County, Pennsylvania, United States2
- Fredericksvarn, Norway1
- Freiburg (Fribourg), Saxony, Germany1
- Ganges Valley, India1
- Geneva, Genève, Switzerland1
- Georgia, United States1
- Germantown, Philadelphia, Philadelphia County, Pennsylvania, United States1
- Germany9
- Giant's Causeway, County Antrim, Ireland, United Kingdom1
- Gibraltar1
- Gilmerton, Edinburgh, Scotland, United Kingdom3
- Girgenti, Agrigento, Sicily, Italy1
- Goshen, Hampshire County, Massachusetts1
- Goshen, Hampshire County, Massachusetts, United States1
- Gouverneur, Saint Lawrence County, New York, United States1
- Greenfield, Saratoga County, New York, United States1
- Greenville County, South Carolina, United States1
- Greenville District, Greenville County, South Carolina, United States1
- Grimshawe Mine, Transylvania County, North Carolina, United States1