A Doublet (or Dublet)
is a slice of colourful natural opal glued on to a dark backing of potch (opal
with no play of colour), obsidian, onyx or some other dark backing. Many times
they are FLAT and have a Ironstone (brown) backing. Sometimes people refer to
these as "Boulder Opal Dublets" - because of the "brown boulder type rock on
the back" but technically they are just Dublets. Click
here for more information about Doublets.
A Triplet (or Triplett)
is a thin slice of colourful natural opal glued between a dark backing (sometimes
plastic, onyx or obsidian) and a quartz (or plastic) dome laminated to the top
to protect the opal layer - therefore 3 layers = triplet. BEWARE: Some Triplet
Materials are Created Opals or Synthetic Opals especially in the "Mosaic" patterns.
Click here for more information about Tripletts.