Sources indicate that in the early 1990s opal, a typical gemstone surfaced in Mezezo, North Shoa Zone of Amhara State. The type of gem was called Chocolate opal because of the chocolate colour inside ...
Addis Ababa — Preparations are finalized to integrate opal and other mineral products into the modern trading platform of the Ethiopian Commodity Exchange (ECX). In an exclusive interview with the ...
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