Asia
Bangladesh, China, India, Russia
Japan, Oman
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
South Africa
Eropah
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
France, Germany, Italy, Venezuela
lain
belum menemukan
pulau hawaii, mid-Atlantik ridge
Amerika Utara
USA
Canada, USA
Amerika Selatan
Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
belum menemukan
deposito di oceania benua
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Not Yet Found