Francevillite, Mounanaite, Curienite

Unknown Owner

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A rich miniature-sized specimen of incredible aesthetic and scientific quality. This piece features INDIVIDUAL and ISOLATED, RELATIVELY LARGE crystals of Francevillite to several mm in size, on an attractive matrix plate - and the back side is as good as the front side! Tiny yellow-gemmy crystals of mounanaite are so abundant and rich on this specimen that they are easily eye-visible against the larger francevillites, as shown in my pics. Characteristically powdery microcrystals of orangey-yellow curienite are in association, as well. This mine closed in 1999 after 40 years of production, and this is, for quality if not size, pretty much as good as the mineral gets. It is a trim from the large specimen I obtained, below. Note that this its the type locality of ALL THREE species! 4 x 3.5 x 1 cm