Geochemistry and petrology of black opal in the pegmatites from Volyn (Ukraine)
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Black opal is a rare variety of opal-CT, which is pigmented by organic matter (OM) and can therefore be considered as an example of geo-bio interaction (Gouzy et al., 2025). The...
黑欧泊（Black opal）是一种罕见的opal-CT变种，其由有机质（organic matter, OM）着色，因此可作为地质-生物相互作用（geo-bio interaction）的典型案例（Gouzy等，2025）。该……
