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Roman Mining in Valongo - Portugal

Hunting Down A Royal Blue Sapphire: Inside The Gem Trade | In Search Of Precious Stones | Ep 3/4

Minec: Mining Amethysts in the Brazilian Outback

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MINERAL EXPLORERS | S2 | Ep5 | SPAIN

Uncovering The Flawless Diamond: Inside The Gem Trade | In Search Of Precious Stones | Ep 4/4

Inside The Gem Trade: Pigeon’s Blood Ruby | In Search Of Precious Stones | Ep 2/4 | CNA Documentary

MINERAL EXPLORERS | S2 | Ep4 | SOUTHERN CALIFORNIA

Aquamarine Adventures: From Mine to Collector's Hands

Mining topaz and aquamarine and building a mountain road | Mt. Antero Treasures S4:E1

Why Most Americans Living in Portugal End Up Leaving

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The Godfather of Tourmaline in Brazil! 🇧🇷

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MINERAL EXPLORERS | S1 | Ep5 | ARKANSAS

MINERAL EXPLORERS | S1 | Ep2 | COLOMBIA

In Search of a Gemstone - Gem Quality Garnets!