Boulder Opal is a unique and beautiful opal found in Queensland, Australia. It is easily identifiable because it is a mixture of ironstone and opal either in a matrix or layered. Every stone is unique and they are arguably the most affordable opal available.
It is an extremely stable type of opal that does not generally crack or craze. Since it is mixed with ironstone it is very strong and resistant to breaking.
We have a large range of polished stones that are suitable for placing into jewelry. Most of our verified sellers cut and polish their own stones.
There are also some very unique carvings available for sale. The ironstone matrix is a perfect medium to carve interesting shapes while trying to follow the color bar They make great gifts and they are so unique.
Another interesting type of Boulder Opal is the wood replacement fossil. These stones have replaced a cavity left over by old wood. This creates a stone with a unique wood pattern. Check them out, they are amazing.