Opal Outlet offers discount batches of mixed opal rough. Not your typical bottle of opal chips from Ebay. This rough has been through a 4 week cleaning process. It is an unsorted mix of white, boulder/matrix rough, moss, and there may even be rare, black opal rough in the batch as well. There will be some pieces that are good for practicing the art of cutting and polishing, as well as some pieces that may be gem worthy. Perfect for the price.