Santarosaite

IMA formula: CuB₂O₄

Crystallography: Tetragonal. I-4₂d. a = 11.517(8) Å, c = 5.632(6) Å. Z = 12.

Specimen #166. Santarosaite. Santa Rosa Mine, Santa Rosa-Huantajaya mining district (Huantajaya mining district), Iquique Province, Tarapacá, Chile. FOV 4.2 mm.