Koroit \u0026 Yowah Boulder Opal - Amazing Gems From Australia !!! 🌈

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Koroit Boulder Opal from Queensland - Ro272

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Australian koroit boulder opal | Cabochons for sale Canada | Rare Koroit Opal | Koroit Opal for Sale

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Koroit Boulder Opal Available at PuebloDirect.com

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An Amazing Koroit Boulder Opal 🔥🔥

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KOROIT BOULDER OPAL

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Boulder Opal - Bigger \u0026 More Unusual Than You Think! — Koroit!

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HUGE! 11,000 carat uncut gem opal gets carved to expose the top quality colors inside

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$20k gem black opal emerges from this uncut rough opal

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I spent my paycheck on opals from Black Opal Direct.

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Boulder Opal Mining 2018

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The Gambler- Cutting a HUGE Australian Opal

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Prospecting for Boulder Opal 2019 Part 2

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Top 5 Coolest Looking Rocks ever Found

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Why are Australian Boulder Opals the most durable in the world?? 22nd Street Tucson Gem Show 2025

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Prospecting for Boulder Opal 2019 Part 1

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Watch as Miki shows every step of cutting boulder rough opals !

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A look at rough opalized wood pieces

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Koroit Boulder Opal from Queensland - Ro273

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Mining, Cutting \u0026 Polishing Koroit Boulder Opal

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Boulder Opal Drilling in Koroit 2020

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Step by step cabochons stones cutting - Koroit Boulder Opal part 1

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Boulder Opal Mining Koroit June 2016

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A handful of Koroit Boulder Opals

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Fastest selling Opal - 19.50 carat Koroit Boulder Triangle Opal Australian LIGHTNING BOLT Gemstone

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AUSTRALIAN NATURAL KOROIT BOULDER OPAL 18.82ct GEM $0.99 N/R AUCTION! (MICK'S)

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Ro2390 - Koroit Boulder Opal parcel from Queensland Australia

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RARE KOROIT BOULDER OPAL

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45.9cts Koroit Boulder Opal Stone BB153

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