Big Knobby opal formation rough 28.00cts Some Bits of colour only 24x19x11mm Lot B4-A127 wk_end_auction 🎲 Grade C (Gamble)The material

🎲 Grade C (Gamble)The material has some colours visible

Great potential for polished stones or inlay work

Description:This big 80

this piece suits those seeking a challenge with potential hidden within a broad formation

Coober Pedy remains one of the premier sources for high-quality opals

Big Knobby opal formation rough 28.00cts Some Bits of colour only 24x19x11mm Lot B4-A127 wk_end_auction 🎲 Grade C (Gamble)The materialBig Knobby Opal Formation Rough 28. 00cts Lot: B4 A127Size: 24 x 19 x 11mmWeight: 28. 00 caratsOrigin: Lightning Ridge, Australia This big knobby opal formation rough from Lightning Ridge has some bits of color only, making it a true gamble stone for lapidaries and collectors. With its large size and natural structure, this piece holds potential for exploration and cutting. Natural & Untreated Some Bits of Color Present Authentic Australian Opal Safe