Zapatalite Locality: Miguel Vacas Mine, Pardais, Vila Viçosa , Évora District, Portugal ( Locality at mindat.org ) Picture width 7 mm. Collection and photograph Christian Rewitzer — Photo: Christian Rewitzer · CC BY-SA 3.0
Zapatalite
Zapatalite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Cu₃Al₄(PO₄)₃(OH)₉·4H₂O.
It crystallizes in the tetragonal crystal system.
Key properties: Mohs hardness 1.5; specific gravity 3.016; Paler blue streak; [Dull.] luster; optically uniaxial.
IMA symbol Zap, IMA status: approved, named in 1971.
Found as a secondary mineral in the oxidized zone of a hydrothermal base-metal prospect in silicified brecciated limestone.
It is found associated with Libethenite, pseudomalachite, chrysocolla.
The mineral was named to honor Emiliano Zapata (1879–1919), Mexican revolutionary.