Mineral Species
Halilsarpite
Composition
[Mg(H2O)6][CaAs3+2(Fe3+2.67Mo6+0.33)(AsO4)2O7]
Crystal System
Orthorhombic
Status at Tsumeb
Questionable
Distribution
(not assigned)
Entry Number
Species; TSNB620
General Notes
Halilsarpite was reported from Tsumeb by Joy Désor in January 2025, occurring as spindle-shaped composites of yellow-green acicular crystals in a specimen of germanite rich ore from the collection of Karl Seifert. The occurrence is considered questionable pending further information.
Associated Minerals
germanite (?)