Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
-
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Uganda
Eropah
England, France, Germany, Spain, United Kingdom
Germany, Hungary, Italy, Spain
lain
-
tanah penggembalaan, mid-Atlantik ridge
Amerika Utara
Canada, USA
USA
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