A new formula and crystal structure for nickelskutterudite, (Ni,Co,Fe)As 3 , and occupancy of the icosahedral cation site in the skutterudite group

Crystal structure of a new compound, CuZnCl(OH) 3 , isostructural with botallackite

Pauloabibite, trigonal NaNbO 3 , isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil

Te-rich raspite, Pb(W 0.56 Te 0.44 )O 4 , from Tombstone, Arizona, U.S.A.: The first natural example of Te 6+ substitution for W 6+

Hydrokenomicrolite, (□,H 2 O) 2 Ta 2 (O,OH) 6 (H 2 O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil