Fulbrightite, the Arsenate Analog of Sincosite

Crystal chemistry of the variscite and metavariscite groups: Crystal structures of synthetic CrAsO 4 ⋅2H 2 O, TlPO 4 ⋅2H 2 O, MnSeO 4 ⋅2H 2 O, CdSeO 4 ⋅2H 2 O and natural bonacinaite, ScAsO 4 ⋅2H 2 O

Bulachite, [Al 6 (AsO 4 ) 3 (OH) 9 (H 2 O) 4 ]⋅2H 2 O from Cap Garonne, France: Crystal structure and formation from a higher hydrate

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIV. Badalovite, NaNaMg(MgFe 3+ )(AsO 4 ) 3 , a member of the alluaudite group

Smamite, Ca 2 Sb(OH) 4 [H(AsO 4 ) 2 ]·6H 2 O, a new mineral and a possible sink for Sb during weathering of fahlore

Lumsdenite, NaCa 3 Mg 2 (As 3+ V 4+ 2 V 5+ 10 As 5+ 6 O 51 )·45H 2 O, a new polyoxometalate mineral from the Packrat mine, Mesa County, Colorado, USA

Crystallographic and fluid compositional effects on the halogen (Cl, F, Br, I) incorporation in pyromorphite-group minerals

Gasparite-(La), La(AsO 4 ), a new mineral from Mn ores of the Ushkatyn-III deposit, Central Kazakhstan, and metamorphic rocks of the Wanni glacier, Switzerland

Synthesis and stability of some members of the pharmacosiderite group, A Fe 4 (OH) 4 (AsO 4 ) 3 · n H 2 O ( A = K, Na, 0.5Ba, 0.5Sr)

Davidbrownite-(NH 4 ), (NH 4 ,K) 5 (V 4+ O) 2 (C 2 O 4 )[PO 2.75 (OH) 1.25 ] 4 ·3H 2 O, a new phosphate–oxalate mineral from the Rowley mine, Arizona, USA

Hydroxylhedyphane, Ca 2 Pb 3 (AsO 4 ) 3 (OH), a new member of the apatite supergroup from Långban, Sweden

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. X. Edtollite, K 2 NaCu 5 Fe 3+ O 2 (AsO 4 ) 4 , and alumoedtollite, K 2 NaCu 5 AlO 2 (AsO 4 ) 4

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIII. Pansnerite, K 3 Na 3 Fe 3+ 6 (AsO 4 ) 8

A new nomenclature scheme for the alluaudite supergroup

Aleutite [Cu 5 O 2 ](AsO 4 )(VO 4 )·(Cu 0.5 □ 0.5 )Cl, a new complex salt-inclusion mineral with Cu 2+ substructure derived from a Kagome-net

New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XII. Zubkovaite, Ca 3 Cu 3 (AsO 4 ) 4

Camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite: six new hydrogen-arsenate minerals from the Torrecillas mine, Iquique Province, Chile

Rudabányaite, a new mineral with a [Ag 2 Hg 2 ] 4+ cluster cation from the Rudabánya ore deposit (Hungary)

IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 49 New minerals and nomenclature modifications approved in 2019

Uptake and release of arsenic and antimony in alunite-jarosite and beudantite group minerals