Fogoite-(Y), Na 3 Ca 2 Y 2 Ti(Si 2 O 7 ) 2 OF 3 , a Group I TS-block mineral from the Lagoa do Fogo, the Fogo volcano, São Miguel Island, the Azores: Description and crystal structure

Bohseite, ideally Ca 4 Be 4 Si 9 O 24 (OH) 4 , from the Piława Górna quarry, the Góry Sowie Block, SW Poland

Refinement of the crystal structure of berezanskite, Ti 2 □ 2 KLi 3 (Si 12 O 30 )

From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral

The crystal structure of gianellaite, [(NHg 2 ) 2 ](SO 4 )(H 2 O) x , a framework of (NHg 4 ) tetrahedra with ordered (SO 4 ) groups in the interstices

Ferri-fluoro-leakeite: a second occurrence at Bratthagen (Norway), with new data on Zn partitioning and the oxo component in Na amphiboles

The structure hierarchy hypothesis

The crystal structure of comancheite, Hg 55 2 + N 24 3 − (OH,NH 2 ) 4 (Cl,Br) 34 , and crystal-chemical and spectroscopic discrimination of N 3− and O 2− anions in Hg 2+ compounds

The crystal structure of chalcoalumite: mechanisms of Jahn-Teller-driven distortion in [6] Cu 2+ -containing oxysalts

Veblenite, K 2 □ 2 Na( Fe 5 2 + Fe 4 3 + Mn 7 2 + □)Nb 3 Ti(Si 2 O 7 ) 2 (Si 8 O 22 ) 2 O 6 (OH) 10 (H 2 O) 3, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite Si 8 O 22 ribbon

From structure topology to chemical composition. XIV. Titanium silicates: refinement of the crystal structure and revision of the chemical formula of mosandrite, (Ca 3 REE)[(H 2 O) 2 Ca 0.5 □ 0.5 ]Ti(Si 2 O 7 ) 2 (OH) 2 (H 2 O) 2 , a Group-I mineral from the Saga mine, Morje, Porsgrunn, Norway

Spectroscopy and X-ray structure refinement of sekaninaite from Dolní Bory (Czech Republic)

Schlüterite-(Y), ideally (Y, REE ) 2 Al(Si 2 O 7 )(OH) 2 F, a new mineral species from the Stetind pegmatite, Tysfjord, Nordland, Norway: description and crystal structure

The crystal structure of kraisslite, [4] Zn 3 (Mn,Mg) 25 (Fe 3+ ,Al)(As 3+ O 3 ) 2 [(Si,As 5+ )O 4 ] 10 (OH) 16 , from the Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA

Bond topology and structure-generating functions: graph-theoretic prediction of chemical composition and structure in polysomatic T–O–T (biopyribole) and H–O–H structures

Ianbruceite, ideally [Zn 2 (OH)(H 2 O)(AsO 4 )](H 2 O) 2 , a new arsenate mineral from the Tsumeb mine, Otjikoto (Oshikoto) region, Namibia: description and crystal structure

Refinement of the crystal structure of zoned philipsbornite–hidalgoite from the Tsumeb mine, Namibia, and hydrogen bonding in the D 2+ G 3 3 + (T 5+ O 4 )(TO 3 OH)(OH) 6 alunite structures

Kazanskyite, Ba□TiNbNa 3 Ti(Si 2 O 7 ) 2 O 2 (OH) 2 (H 2 O) 4 , a Group-III Ti-disilicate mineral from the Khibiny alkaline massif, Kola Peninsula, Russia: description and crystal structure

Natrotitanite, ideally (Na 0.5 Y 0.5 )Ti(SiO 4 )O, a new mineral from the Verkhnee Espe deposit, Akjailyautas mountains, Eastern Kazakhstan district, Kazakhstan: description and crystal structure

Davidlloydite, ideally Zn 3 (AsO 4 ) 2 (H 2 O) 4 , a new arsenate mineral from the Tsumeb mine, Otjikoto (Oshikoto) region, Namibia: description and crystal structure