Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Japan, Oman
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
South Africa
Eropah
United Kingdom
France, Germany, Italy, Venezuela
lain
belum menemukan
pulau hawaii, mid-Atlantik ridge
Amerika Utara
USA
Canada, USA
Amerika Selatan
Kolumbia
belum menemukan
deposito di oceania benua
Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
Not Yet Found