Cervantite
Image: Robert M. Lavinsky (CC BY-SA 3.0)
Mineral NameCervantite
Chemical FormulaSb₂O₄
Mohs Hardness4
Crystal Systemorthorhombic
Lustervitreous
Streak Coloryellowish-white
Cleavagenone
Fractureuneven
Specific Gravity6.64
Colorslight brown, yellow, white, gray
Transparencyopaque
Type LocalityHuitzuco de los Figueroa (Huitzuco), Municipio de Huitzuco, Guerrero, Mexico
Mineral GroupOxides
Usesore of antimony, collector
Associated Mineralsstibnite, kermesite, valentinite, senarmontite
Rarityrare
Description
This image displays a sculptural, solid specimen of light brown cervantite, forming a crust or aggregate with a somewhat earthy to greasy luster.
Geological Context
Cervantite is a secondary mineral that forms as an alteration product of stibnite (antimony sulfide) in antimony deposits, often found in oxidized zones.
