Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
-
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Uganda
Eropah
United Kingdom
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
Amerika Selatan
Kolumbia
Bolivia, Brazil
deposito di oceania benua
Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
New South Wales, New Zealand, Queensland, South Australia, Western Australia