Uvite, CaMg 3 (Al 5 Mg)(Si 6 O 18 )(BO 3 ) 3 (OH) 3 (OH), a new, but long-anticipated mineral species of the tourmaline supergroup from San Piero in Campo, Elba Island, Italy Open Access

Insights into the crystal chemistry of the serandite–schizolite–pectolite series Available to Purchase

OLE VALDEMAR PETERSEN (1939–2020) Available to Purchase

Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi 3 O 8 (OH) Available to Purchase

Hydroxylgugiaite: a New Beryllium Silicate Mineral from the Larvik Plutonic Complex, Southern Norway and the IlÍmaussaq Alkaline Complex, South Greenland; the First Member of the Melilite Group To Incorporate a Hydrogen Atom Available to Purchase

Telluromandarinoite, a New Tellurite Mineral from the El Indio-tambo Mining Property, Andes Mountains, Chile Available to Purchase

Garronite-na, a New Zeolite Species from Mont Saint-hilaire, QuÉbec Available to Purchase

New Data For Chiavennite and Ferrochiavennite Available to Purchase

Hydroterskite: a New Mineral Species from the Saint-amable Sill, Quebec, and a Comparison with Terskite and Elpidite Available to Purchase

BUSSYITE-(Y), A NEW BERYLLIUM SILICATE MINERAL SPECIES FROM MONT SAINT-HILAIRE, QUEBEC Available to Purchase

A NEW OCCURRENCE OF THE BOROSILICATE SERENDIBITE IN TOURMALINE-BEARING CALC-SILICATE ROCKS, PORTAGE-DU-FORT MARBLE, GRENVILLE PROVINCE, QUÉBEC: EVOLUTION OF BORON ISOTOPE AND TOURMALINE COMPOSITIONS IN A METAMORPHIC CONTEXT Available to Purchase

MAMMOTHITE: A Pb-Sb-Cu-Al OXY-HYDROXIDE-SULFATE — HYDROGEN ATOM DETERMINATION LOWERS SPACE GROUP SYMMETRY Available to Purchase

DISCREDITATION OF THOROGUMMITE Available to Purchase

Chromo-alumino-povondraite, NaCr 3 (Al 4 Mg 2 )(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup Available to Purchase

SERENDIBITE, A COMPLEX BOROSILICATE MINERAL FROM PONTIAC, QUEBEC: DESCRIPTION, CHEMICAL COMPOSITION, AND CRYSTALLOGRAPHIC DATA Available to Purchase

Mcalpineite from the Gambatesa mine, Italy, and redefinition of the species Available to Purchase

CRYSTAL STRUCTURE DETERMINATION OF A UNIQUE Nb-Ti-RICH THORITE FROM MONT SAINT-HILAIRE, QUEBEC, WITH COMMENTS ON ‘THOROGUMMITE’ Available to Purchase

FERROCHIAVENNITE, A NEW BERYLLIUM SILICATE ZEOLITE FROM SYENITE PEGMATITES IN THE LARVIK PLUTONIC COMPLEX, OSLO REGION, SOUTHERN NORWAY Available to Purchase

Volkovskite, a complex borate mineral: Refined crystallographic data and optics Available to Purchase

Veatchite: Structural relationships of the three polytypes Available to Purchase