| Copperfields mine | Canada | 1 |
| Copps mine | United States | 1 |
| Crabtree Mine | United States | 1 |
| Cradock | South Africa | 1 |
| Cruz del Sur mine | Argentina | 1 |
| Cucamonga Peak | United States | 1 |
| Curiglia | Italy | 1 |
| Curitiba | Brazil | 1 |
| Cuvier Island | New Zealand | 1 |
| Czech Republic | Czech Republic | 1 |
| Daba marble quarry | Jordan | 1 |
| Dan Patch Mine | United States | 1 |
| Danbury | United States | 1 |
| Darby kimberlite field | Canada | 1 |
| Daun | Germany | 1 |
| Delamar Mine | United States | 1 |
| Delingha | People's Republic of China | 1 |
| Dennehotso | United States | 1 |
| Dermbach, Herdorf | Germany | 1 |
| Dernbach | Germany | 1 |
| Detva | Slovakia | 1 |
| Dhurmsala meteorite | India | 1 |
| Diana | United States | 1 |
| Dingo Donga cave | Australia | 1 |
| Dobšiná | Slovakia | 1 |
| Donbas | Ukraine | 1 |
| Douglashall | Germany | 1 |
| Drachenfels | Germany | 1 |
| Drammen | Norway | 1 |
| Dronino | Russia | 1 |
| Dzharkenskaya depression | Kazakhstan | 1 |
| Dúbrava | Slovakia | 1 |
| East Colusa mine | United States | 1 |
| East Kazakhstan Region | Kazakhstan | 1 |
| Easton | United States | 1 |
| Egypt | Egypt | 1 |
| Eibenstock | Germany | 1 |
| Eisenbach, Taunus | Germany | 1 |
| El Paso County | United States | 1 |
| Elba | Italy | 1 |
| Elgoras mount, Sal’nye tundry | Russia | 1 |
| Empress Josephine mine | United States | 1 |
| Ephesus | Seljuk Empire | 1 |
| Epsom | United Kingdom | 1 |
| Erenhot | People's Republic of China | 1 |
| Eringa river mouth | Russia | 1 |
| Etna Volcanic complex | Italy | 1 |
| Euboea | Greece | 1 |
| Eureka mine | Spain | 1 |
| Facciatoia quarry | Italy | 1 |
| Faial Island | Portugal | 1 |
| Falò mount | Italy | 1 |
| Farnese | Italy | 1 |
| Fassa Valley | Italy | 1 |
| Fengjiashan mine | People's Republic of China | 1 |
| Feriolo, Baveno | Italy | 1 |
| Fernando de Noronha | Brazil | 1 |
| Filipstad Municipality | Sweden | 1 |
| Filleigh | United Kingdom | 1 |
| Finksburg | United States | 1 |
| Flagstaff | United States | 1 |
| Fleisstal | Austria | 1 |
| Fletcher mine | United States | 1 |
| Fodderstack Mountain | United States | 1 |
| Folgosinho | Portugal | 1 |
| France | France | 1 |
| Franklin Furnace | United States | 1 |
| Franzensfeste | Italy | 1 |
| Fremont County | United States | 1 |
| Friedrichroda | Germany | 1 |
| Frongoch Mine | United Kingdom | 1 |
| Fuengirola | Spain | 1 |
| Fumade | France | 1 |
| Funderburk prospect | United States | 1 |
| Gahcho Kue Diamond Mine | Canada | 1 |
| Galgenberg Tunnel | Austria | 1 |
| Gara Samani | Algeria | 1 |
| Gcwihaba caves | Botswana | 1 |
| Germany | Germany | 1 |
| Getchell mine | United States | 1 |