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Rui Galopim de Carvalho on LinkedIn: #tourmaline #gemology #jewellery #lapidary #art

SSEF Fieldtrip to Paraiba, Brazil (2018) by ssefgemlab - Issuu

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Field Trip to Paraiba Tourmaline Mines in Brazil - SSEF

SSEF Fieldtrip to Paraiba, Brazil (2018) by ssefgemlab - Issuu

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Paraiba at Pala — Pala international

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Batalha mine, Junco do Seridó, Paraíba, Brazil