In this category, you will find Koroit and Yowah Boulder Opals that have been cut and polished to show off their unique pattern and colour. Boulder opals are known for their hardness, so experience cutting with the right equipment is recommended when shaping these opals further.
Koroit Opals are part of the Boulder Opal family. They are characterised by solid brown ironstone matrix or layers interlaced with the opal. Boulder is the second most valuable type in the world after Black Opals.
“ready to be specimens of a collection, used in jewellery or as decorative gems in any creation.”
Koroit Opals take their name from the Koroit mining area in South West Queensland. They are quite appealing due to their unique matrix patterning. Yowah produces lovely “Yowah Nuts” where the opal has formed in a cavity within a boulder.
At the Opal Shop, we have a diverse range of single cut opals from Yowah and Koroit. We almost always have a video as well as a verbal and written description of the items. Our price and descriptions are as fair and understandable as possible, determined by theOpal Shop Owner, expert and buyer of 20 years.