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