"Nature's Fireworks" - A Beginner's Guide to OPAL - Part 2 W
Although the largest opal fields are in Australia, opal is also found throughout the world from Europe to the South Americas, North America and South East Asia. It has been mined in Brazil, Honduras, Indonesia, Mexico, Hungary, western parts of the USA and more recently Canada.
Following is a synopsis of the countries where opal is currently mined:
The Mexican opal fields are primarily located in the Queretare and Jalica regions. These regions have been known to be producing opal since the time of the Aztecs, and the opal is commonly referred to as