Australian opal jewelry has a great variety of types and styles. There are three kinds of opal gemstone found in the outback of Australia in three basic areas: South Australia, New South Wales and Queensland. The rare gem termed “opal” has the meaning of “ a change of colour”. The first type opal found in this large continent was boulder opal jewelry and that was in the state of Queensland. The opal necklaces are made of the special opal gem found in Queensand. This particular unique opal leaves a discussion f white opal, crystal opal and black opal. Boulder Opal is a particularly unique open as it applies to necklace and live discussion white opal, crystal opal and black opal. Boulder opal is sometimes found in very large and quite small, depending on the field. as the Opal Miner removes these stones from the ground, he carefully chips away at the rock looking for thin veins of colour Difference in the mother Ironstone. Opals are described as picture stones that the pattern comes about as the opal veins. Some g which are in the likeness of recognizable objects such as clouds, trees, animals, marine creatures etc. At other times the pictures are like an abstract oil painting.