Mn–Fe-rich genthelvite from pegmatites associated with the Madeira Sn–Nb–Ta deposit, Pitinga, Brazil: new constraints on the magmatic-hydrothermal transition in the albite-enriched granite system Available to Purchase

Helvine-group minerals from Norwegian granitic pegmatites and some other granitic rocks: Cases of significant Sc and Sn contents Available to Purchase

Genthelvite Overgrowths On Danalite Cores from a Pegmatite Miarolitic Cavity in Cheyenne Canyon, El Paso County, Colorado Available to Purchase

Waimirite-(Y), orthorhombic YF 3 , a new mineral from the Pitinga mine, Presidente Figueiredo, Amazonas, Brazil and from Jabal Tawlah, Saudi Arabia: description and crystal structure Available to Purchase

THE ROLE OF BERYLLIUM IN BERYLLOSILICATE MINERAL STRUCTURES AND ZEOLITE FORMATION Available to Purchase

A TWO-PHASE INTERGROWTH IN GENTHELVITE FROM MONT SAINT-HILAIRE, QUEBEC Available to Purchase

Spectroscopic standards for four- and fivefold-coordinated Fe 2+ in oxygen-based minerals Available to Purchase

Trace-element contents of helvite-group minerals from metasomatic albitites and hydrothermal veins at Sucuri, Brazil and Dajishan, China Available to Purchase

Mn zonation and fluid inclusions in genthelvite from the Taghouaji Complex (Air Mountains, Niger) Available to Purchase

Stability of genthelvite, Zn 4 (BeSiO 4 ) 3 S; an exercise in chalcophilicity using exchange operators Available to Purchase

The crystal structures of helvite group minerals, (Mn,Fe,Zn) 8 (Be 6 Si 6 O 24 )S 2 Available to Purchase

The stability of danalite, Fe 4 Be 3 (SiO 4 ) 3 S Available to Purchase

An occurrence of genthelvite in The Younger Granite Province of Northern Nigeria Available to Purchase

Genthelvite from Cookstove Mountain, El Paso County, Colorado Available to Purchase

Genthelvite crystal from El Paso county, Colorado Available to Purchase