How Precious Opal Forms; Slovakia's Opal Mines

(4:39)

Exploring of Slovak Opal Mine

(1:10)

Slovak opal mines - the world's oldest opal mines

(2:30)

Slovak Opal Mine documentary

(1:14)

Slovak opal mines

(4:10)

Slovak Opal mine

(5:45)

Slovak Opal Mines diving - Slovenske Opalove Bane

(4:36)

Slovak Opal Mine

(10:8)

A fabulous stone AND a bonus! My Opal Journey-Stone 256

(22:52)

This cut made National News! Cutting RARE Black Opal, the heat is on Direct from the mine.

(18:7)

BLUE OPAL FIND WITH 330 JHON DEER

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Breaking open Grandma's sandstone rock from 45 years ago *FOSSIL INSIDE*

(4:57)

opál v potoku

(11:33)

How to Mine for Opals

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Opals in Tucson - Milo's Opals, Sweet Opal, Desert Jewells w/ Elizabeth Lloyd

(1:28:7)

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

(8:21)

I broke this rough opal in half and the surprise inside was astounding

(6:37)

100 carat rough opal fresh out of the mine gets cut

(12:53)

The search for victims lost in the Tilly Foster Mine, 7-26-2015

(6:56)

Shapes of Opal from Slovakia Ice Opal, Slovak Opal 60FPS

(2:23)

Diving in Slovak Opal mine - The author: Sebastian Popek

(4:36)

Diving in Slovak Opal Mines

(1:47)

Slovak Opal Mine

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Diving in Slovak Opal mine - The author: Sebastian Prędki

(4:28)

Abandoned opal mine

(1:31)

Slovak opal mines - Jozef

(2:44)

Diving in Slovak Opal mine - The author: Pekka Tuuri

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Diving in Slovak Opal mine - The author: Jarkko Kortesoja

(8:41)

Diving in Slovak Opal Mine - 06.2016

(4:28)

Slovenský opál crystal

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