From: Mina Miguel Vacas, Vila Viçosa, Évora, Portugal.
  
Zapatalite crust on Quartz with small translucent submillimetric crystals of turquoise blue color. Sample with 2.0 x 1.5 x 1.0cm. Generated in a supergenic enrichment zone of a copper deposit, mainly in quartz veins brecciated with other copper phosphates and carbonates (libethenite, pseudomalachite, malachite, azurite, etc.).