Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Not Yet Found
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Uganda
Eropah
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland
Germany, Hungary, Italy, Spain
lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
USA
Amerika Selatan
belum menemukan
Bolivia, Brazil
deposito di oceania benua
Australia
Not Yet Found
New South Wales, New Zealand, Queensland, South Australia, Western Australia