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

Relative humidity as a driver of structural change in three new ferric-sulfate-tellurite hydrates: New minerals tamboite and metatamboite, and a lower-hydrate derivative, possibly involving direct uptake of atmospheric {H 2 O} 4 clusters Available to Purchase

Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure Available to Purchase

Beusite-(Ca), ideally CaMn 2 2+ (PO 4 ) 2 , a new graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description and crystal structure Available to Purchase

The crystal-chemistry of riebeckite, ideally Na2Fe 3 2+ Fe 2 3+ Si 8 O 22 (OH) 2 : a multi-technique study Available to Purchase

Folvikite, Sb 5+ Mn 3+ (Mg,Mn 2+ ) 10 O 8 (BO 3 ) 4 , a new oxyborate mineral from the Kitteln mine, Nordmark ore district, Värmland, Sweden: description and crystal structure Available to Purchase

Ferro-ferri-nybØite from Mont Saint-hilaire, QuÉbec, Canada: Correction Available to Purchase

Two Astrophyllite-supergroup Minerals: Bulgakite, a New Mineral from the Darai-pioz Alkaline Massif, Tajikistan and Revision of the Crystal Structure and Chemical Formula of Nalivkinite Available to Purchase

From Structure Topology To Chemical Composition. Xix. Titanium Silicates: Revision of the Crystal Structure and Chemical Formula of Bafertisite, Ba 2 Fe 2+ 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-ii Ts-block Mineral Available to Purchase

LONG-RANGE AND SHORT-RANGE ORDER IN GEM PARGASITE FROM MYANMAR: CRYSTAL-STRUCTURE REFINEMENT AND INFRARED SPECTROSCOPY Available to Purchase

Khvorovite, Pb 4 2 + Ca 2 [Si 8 B 2 (SiB)O 28 ]F, a new hyalotekite-group mineral from the Darai-Pioz alkaline massif, Tajikistan: Description and crystal structure Available to Purchase

Yusupovite, Na 2 Zr(Si 6 O 15 )(H 2 O) 3 , a new mineral species from the Darai-Pioz alkaline massif and its implications as a new microporous filter for large ions Available to Purchase

FERRO-FERRI-NYBØITE, NaNa 2 (Fe 2+ 3 Fe 3+ 2 )(Si 7 Al)O 22 (OH) 2 , A NEW CLINOAMPHIBOLE FROM MONT SAINT-HILAIRE, QUÉBEC, CANADA: DESCRIPTION AND CRYSTAL STRUCTURE Available to Purchase

SAAMITE, Ba□TiNbNa 3 Ti(Si 2 O 7 ) 2 O 2 (OH) 2 (H 2 O) 2 , A GROUP-III Ti-DISILICATE MINERAL FROM THE KHIBINY ALKALINE MASSIF, KOLA PENINSULA, RUSSIA: DESCRIPTION AND CRYSTAL STRUCTURE Available to Purchase

Nafertisite, Na 3 Fe 2+ 10 Ti 2 (Si 6 O 17 ) 2 O 2 (OH) 6 F(H 2 O) 2 , from Mt. Kukisvumchorr, Khibiny alkaline massif, Kola peninsula, Russia: Refinement of the crystal structure and revision of the chemical formula Available to Purchase

Agakhanovite-(Y), ideally (YCa)□ 2 KBe 3 Si 12 O 30 , a new milarite-group mineral from the Heftetjern pegmatite, Tørdal, Southern Norway: Description and crystal structure Available to Purchase

Vladykinite, Na 3 Sr 4 (Fe 2+ Fe 3+ )Si 8 O 24 : A new complex sheet silicate from peralkaline rocks of the Murun complex, eastern Siberia, Russia Available to Purchase

FROM STRUCTURE TOPOLOGY TO CHEMICAL COMPOSITION. XV. TITANIUM SILICATES: REVISION OF THE CRYSTAL STRUCTURE AND CHEMICAL FORMULA OF SCHÜLLERITE, Na 2 Ba 2 Mg 2 Ti 2 (Si 2 O 7 ) 2 O 2 F 2 , FROM THE EIFEL VOLCANIC REGION, GERMANY Available to Purchase

Carlfrancisite: Mn 3 2+ (Mn 2+ ,Mg,Fe 3+ ,Al) 42 (As 3+ O 3 ) 2 (As 5+ O 4 ) 4 [(Si,As 5+ )O 4 ] 6 [(As 5+ ,Si)O 4 ] 2 (OH) 42 , a new arseno-silicate mineral from the Kombat mine, Otavi Valley, Namibia Available to Purchase

Local structure in C 2/ c clinopyroxenes on the hedenbergite (CaFeSi 2 O 6 )-ferrosilite (Fe 2 Si 2 O 6 ) join: A new interpretation for the Mössbauer spectra of Ca-rich C 2/ c clinopyroxenes and implications for pyroxene exsolution Available to Purchase