oolite dan breksi cadangan
cadangan
deposito di benua timur
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Namibia, Nigeria, South Africa
Eropah
United Kingdom
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
lain
belum menemukan
tanah penggembalaan
deposito di benua Barat
Amerika Utara
USA
Barbados, Canada, Mexico, Panama, USA
Amerika Selatan
Kolumbia
Brazil
deposito di oceania benua
Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
New South Wales, New Zealand
