Okieite, Mg 3 [V 10 O 28 ]·28H 2 O, a new decavanadate mineral from the Burro mine, Slick Rock mining district, San Miguel County, Colorado, USA

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

Caseyite, a new mineral containing a variant of the flat-Al 13 polyoxometalate cation

Bicapite, KNa 2 Mg 2 (H 2 PV 14 5 + O 42 )·25H 2 O, a new polyoxometalate mineral with a bicapped Keggin anion from the Pickett Corral mine, Montrose County, Colorado, U.S.A.

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

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

Dokuchaevite, Cu 8 O 2 (VO 4 ) 3 Cl 3 , a new mineral with remarkably diverse Cu 2+ mixed-ligand coordination environments

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

Erikjonssonite, (Pb 32 O 21 )[(V,Si,Mo,As)O 4 ] 4 Cl 9 , a new mineral from the Kombat mine and structural classification of layered lead oxychlorides related to litharge

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

Determination of V 4+ :V 5+ Ratios in the [V 10 O 28 ] n – Decavanadate Polyanion

Identifying Protonated Decavanadate Polyanions

Pandoraite-ba and Pandoraite-ca, Ba(V 4+ 5 V 5+ 2 )O 16 ·3H 2 O and Ca(V 4+ 5 V 5+ 2 )O 16 ·3H 2 O, Two New Vanadium Oxide Bronze Minerals in Solid Solution from the Pandora Mine, La Sal Mining District, San Juan County, Colorado, Usa

Crystal chemistry of new descloizite-type compounds containing mercury

Ammoniomathesiusite, a new uranyl sulfate–vanadate mineral from the Burro mine, San Miguel County, Colorado, USA

Ammoniolasalite, [(NH 4 ) 2 Mg 2 (H 2 O) 20 ][V 10 O 28 ], A New Decavanadate Species from the Burro Mine, Slick Rock District, Colorado

Gabrielsonite revisited: crystal-structure determination and redefinition of chemical formula

IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 45 New minerals and nomenclature modifications approved in 2018

Analysis and visualization of vanadium mineral diversity and distribution

IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 44 New minerals and nomenclature modifications approved in 2018