GORGEOUS Green Opal Matrix from Madagascar. Colors and details are amazing!!! Please see last photo before purchasing: Stone has rough spots. Nevertheless, Stone is beautiful and extremely hard to find.
Matrix opal is a gem material in which precious opal is intimately distributed through its host rock. The precious opal can occur as a "cement" between sediment grains, as replacements of host material, or as infillings of tiny vesicles. This intimate mixture makes a gem material that looks like the host rock, but with patches of precious opal within.