Region
Australia
10
Alaska
5
Pennsylvania
5
Carbon County
4
Utah
4
West Virginia
4
Ambon Island
3
Bolivia
3
England
3
Idaho
3
Indonesia
3
Mullan Region
3
Potosí
3
United States
3
Balkan Peninsula
2
Ohio River Valley Region
2
Peru
2
Scotland
2
Ambon (Île)
1
Arkansas
1
Asia
1
Balkans
1
Beckley, W. Va
1
Bolivie
1
Broken Hill Region (N.S.W.)
1
Canada
1
Carbon
1
China
1
Cobar Region (N.S.W.)
1
Douglas County
1
Douglas County (Wis.)
1
Esk Valley (North Yorkshire)
1
Finland
1
Franklin Furnace
1
Hiddenite
1
Illinois
1
Indonésie
1
Japan
1
Katmai, Mount
1
Malham Region
1
Mexico
1
New Jersey
1
New York (State)
1
North Carolina
1
North-West
1
Ontario
1
Sonora (State)
1
South Africa
1
Spain
1
Strontian
1
more ...