Formula: CaCu(SiO₄) · H₂O

Species:

Colour: Azure blue

Lustre: Vitreous

Specific Gravity: 3.16 – 3.18

Crystal System: Monoclinic

Name: Named in honor of Bronson Ferrin Stringham (1907-1968) professor and chair of department of mineralogy, University of Utah, USA. He made important contributions to the geology of Utah and described the mineral tinticite.

Type Locality: Bawana Mine, Rocky Mining District, Rocky Range, Beaver County, Utah – USA