Opal number 503- This Opal was found in the township of lightning Ridge it is the largest black Opal found in modern times and the colour bar that runs around the sides of the comment is quite symmetrical. This is the famous Halley's comet over 2000 carats the colours are green blue and is a 5 out of 5 fire this Opal appears in the Guinness book of records and was prospected next to my open cut on the famous 3 mile just before I commenced my open cut mining project
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