Solid opal can be a combination of precious opal and common opal.
Types of opal rings.
Understanding opal starts with understanding the basic types of opal found.
Ironstone on which the opal formed.
In this video justin will take you through the four main australian opal types as well as a newly discovered one not yet gone mainstream.
Black opal is the most valuable type of opal and it is predominantly found in lightning ridge.
Boulder opal is opal that has formed along with another rock called ironstone.
Most white opal have muted pastel colors.
Shells of coarse hardened sandy clay with layers of opal in between.
This is because black opal amplifies the colors with the contrasting dark background.
Boulder opal is similar to black opal except that the foreground colour is very thin and sits on a brown ironstone base.
Solid opal type 1 opal solid opal is a name used for a rough or cut stone that consists entirely of opal material without any host rock or other significant inclusions contained within the stone.
The opal is the central kernel and never reaches the outer edge.
Australia produces various types of opals.
Walnut sized concretions in a regular layer like a conglomerate.
Types of australian opal.
When the parent stone is visible alongside the opal as in the pendant shown here it is called boulder matrix opal.
Thin to thick seams of white or black.
Most of this type of opal comes from the opal fields in queensland where there is a huge belt that spreads thousands of kilometers where this type of opal is produced.
Solid opal is also known as type 1 opal.
Meaning that the surface is often but not always undulating people who are more progressive in their jewellery tastes prefer these stones.