Black/Dark Crystal Seam opal formation rough 5.75cts Gorgeous Bright Green/Blue dominant M.fires 18x3x5mm Lot B4-A754 wk_auction this opal offers great potential

this opal offers great potential for lapidaries and collectors alike

but untested inside

com and secure this fiery treasure

Lot Title: Ocean of Deep Blues – Dark Base Crystal Knobby Rough/Rub 9

Black/Dark Crystal Seam opal formation rough 5.75cts Gorgeous Bright Green/Blue dominant M.fires 18x3x5mm Lot B4-A754 wk_auction this opal offers great potentialLot Title#Grade B Cutter Bright Green Blue Multi Fire Dark Crystal Seam Rough (Lightning Ridge) Lot NumberB4 A754 DetailsWeight: 5. 75 ctSize: 18 x 3 x 5 mmOrigin: Lightning Ridge, AustraliaType: Black Dark Crystal Seam Opal RoughUse: Cutting RoughColour: Bright green blue dominant multi fire DescriptionBeautiful Lightning Ridge dark crystal seam opal rough with bright green and blue dominant multi fire across a thin formation. The colour is vivid and