oolite dan appinite cadangan
cadangan
deposito di benua timur
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Russia
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Angola, Botswana, Cameroon, Ethiopia, South Africa
Eropah
United Kingdom
England, Hungary, Iceland, United Kingdom
lain
belum menemukan
antarctica, tanah penggembalaan
deposito di benua Barat
Amerika Utara
USA
Canada, Mexico, USA
Amerika Selatan
Kolumbia
Argentina, Kolumbia, Ekuador
deposito di oceania benua
Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
New South Wales, New Zealand, Queensland, South Australia, Western Australia
