Nuts about Nuts

the nuts are not really nuts but concretions that have a nutlike look. All the thousands of nuts that have no opal in them have been cracked with hatchets or sawn with diamond blades and strewn upon the ground for drive way or pot hole fill. Looks like thousands of nutshells. It is such a rush to pick one up one day and the sun hits it just right revealing a matrix opal bar twinkling in the light that was overlooked. I have done that and cut a $450.00 stone out of it. It was blue and green fire within a shiny pitch black matrix making it a genuine black matrix opal...they are rare and desireable and more expensive to purchase. In fact black opals with red are the prima donnas of the opal fields. Red fire you see is also hard to come by and the two rarities together are very special.