Opal Shells are shells that have been opalised. Most opal shells are from Coober Pedy opal fields, with the most valuable black opal shells found at Lightning Ridge.
The Australian outback was once an inland sea but its now ahot dry desert where opal miners dig for opalised seashells. it is rare to find good opalised shell with good colour and only small amounts of potch.
Most shells are found in patches and small areas rather than spread thoughout the mine. Good shells are worth more if left natural and not polished for collectors.
Occasionally shellsare packed with valuable opal and these are highly-valued amongst collectors. It was estimated that 65 Million years ago, different species of sea reptiles fossilized along with dinosaurs.
The opal shells are usually found by most miners, so-called as “gougers”, who work the opal fields for valuable opal. Unique opalscan be more priceless compared to diamonds especially if a part of a fossil or ashell theycan be valued up to $1,000.
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