Boulder Pipe Opal Rough. This rough is only found in few
mines in the Queensland opal fields.
On Opal Hunters TV series, the Col crew finds one boulder
pipe opal for weeks work.
So, it is rare rough and only recently few opal mines have
this pipe opal rough and the colours are striking and strong and vibrant.
The pipe opal is formed in tubular pattern but when mined
these tubes do break so its rare to find long specimen in the rough
The potch is light sandy material that’s sometimes is hard
to take good polish, but the opal takes a brilliant polish and the contrast
As the rough opal is tubular it is hard to cut large stone
unless you leave some of the potch or matrix intact
This has been excepted by the opal industry as an attractive
polished opal and the opal cutter has to decide does he polish with or without the