Clinocervantite is a monoclinic-prismatic mineral with a chemical formula of Sb3+Sb5+O4."Clinocervantite: Mineral information, data and localities" mindat.org It was discovered in 1999 in cavities of waste rock at the Cetine Mine in Siena, Italy."Clinocervantite Mineral Data" webmineral.com
Description
Clinocervantite is colorless or white and has a vitreous luster. It has a white streak."Clinocervantite.pdf" Handbook of Mineralogy
It is isostructural with kyawthuite. The name clinocervantite reflects its relationship with cervantite. It is monoclinic-prismatic polymorph."AMSCD Search Results" American Mineralogist Crystal Structure Database It has a specific gravity of 6.72 and a molecular weight of 307.50 gm. It has a biaxial optical class.
References