Scandio-winchite, ideally ☐(NaCa)(Mg 4 Sc)(Si 8 O 22 )(OH) 2 : The first Sc-dominant amphibole-supergroup mineral from Jordanów Śląski, Lower Silesia, southwestern Poland Available to Purchase

Scandian actinolite from Jordanów Śląski, Lower Silesia, Poland: Compositional evolution, crystal structure, and genetic implications Available to Purchase

Silesiaite, ideally Ca 2 Fe 3+ Sn(Si 2 O 7 )(Si 2 O 6 OH), a new species in the kristiansenite group: crystal chemistry and structure of holotype silesiaite from Szklarska Poręba, Poland, and Sc-free silesiaite from Häiviäntien, Finland Available to Purchase

Kozłowskiite, ideally Ca 4 Fe 2+ Sn 3 (Si 2 O 7 ) 2 (Si 2 O 6 OH) 2 , a new kristiansenite-type mineral from Szklarska Poręba, Lower Silesia, Poland Available to Purchase