coquina dan tephrite cadangan
Asia
Not Yet Found
Not Yet Found
Afrika
Not Yet Found
Namibia, Uganda
Eropah
United Kingdom
Germany, Hungary, Italy, Portugal, Spain
lain
belum menemukan
belum menemukan
Amerika Selatan
belum menemukan
belum menemukan
deposito di oceania benua
Australia
Not Yet Found
New Zealand, Western Australia