What is Boulder Opal, and how is it different from other types of Opal?
Boulder Opal is a type of Opal that develops within ironstone, which is a kind of sedimentary rock. This natural backing gives Boulder Opal a distinct and earthy look that sets it apart from other types of Opal, such as Precious Opal or Fire Opal.

Is this Boulder Opal natural or treated in any way?
Many customers want to know if Boulder Opal is untreated because untreated stones usually have a higher value. Since some Boulder Opals may be enhanced or stabilized, it's crucial for buyers to check if any treatments have been done.

Where was this Boulder Opal sourced from?
Boulder Opal mainly comes from Australia, especially in Queensland. People looking to buy this stone might be curious about where it comes from, since Australian Boulder Opal is known to be the best quality and is highly desired.

Is Boulder Opal considered a rare gemstone?
Boulder Opal might not be as uncommon as certain other types of Opals, but top-notch pieces that showcase bright colors and have a clear backing are seen as rare and worth a lot.