Location: Miguel Vacas Mine, Vila Viçosa, Évora, Portugal.
Sample with 3.8 x 3.1 x 2.1cm with submillimetric crystals of olive green Libethenite with vitreous lustre and green Pseudomalachite in the form of interstitial crust between white brecciated Quartz. Generated in a supergenic enrichment zone of a copper deposit, mainly in brecciated quartz veins with other copper phosphates and carbonates (pseudomalachite, malachite, azurite, etc.).