Crystal-chemistry of sulfates from the Apuan Alps (Tuscany, Italy). VI. Tl-bearing alum-(K) and voltaite from the Fornovolasco mining complex

OH defects in quartz as monitor for igneous, metamorphic, and sedimentary processes

Influence of the octahedral cationic-site occupancies on the framework vibrations of Li-free tourmalines, with implications for estimating temperature and oxygen fugacity in host rocks

Experimental hydration of natural volcanic clinopyroxene phenocrysts under hydrothermal pressures (0.5–3 kbar)

Crystal chemistry of spinels in the system MgAl 2 O 4 -MgV 2 O 4 -Mg 2 VO 4

Optical absorption spectroscopy study of the causes for color variations in natural Fe-bearing gahnite: Insights from iron valency and site distribution data

Chromo-alumino-povondraite, NaCr 3 (Al 4 Mg 2 )(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup

Vanadio-oxy-chromium-dravite, NaV 3 (Cr 4 Mg 2 )(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup

Crystal chemistry of the ulvöspinel-qandilite series

Vanadio-oxy-dravite, NaV 3 (Al 4 Mg 2 )(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup

Oxy-dravite, Na(Al 2 Mg)(Al 5 Mg)(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup

Crystallographic and spectroscopic characterization of Fe-bearing chromo-alumino-povondraite and its relations with oxy-chromium-dravite and oxy-dravite

Fluor-elbaite, Na(Li 1.5 Al 1.5 )Al 6 (Si 6 O 18 )(BO 3 ) 3 (OH) 3 F, a new mineral species of the tourmaline supergroup

Oxy-chromium-dravite, NaCr 3 (Cr 4 Mg 2 )(Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, a new mineral species of the tourmaline supergroup

Cation ordering over short-range and long-range scales in the MgAl 2 O 4 -CuAl 2 O 4 series

Tsilaisite, NaMn 3 Al 6 (Si 6 O 18 )(BO 3 ) 3 (OH) 3 OH, a new mineral species of the tourmaline supergroup from Grotta d’Oggi, San Pietro in Campo, island of Elba, Italy

Zn-O tetrahedral bond length variations in normal spinel oxides

A first record of strong structural relaxation of TO 4 tetrahedra in a spinel solid solution

Structural relaxation around Cr 3+ and the red-green color change in the spinel (sensu stricto)-magnesiochromite (MgAl 2 O 4 -MgCr 2 O 4 ) and gahnite-zincochromite (ZnAl 2 O 4 -ZnCr 2 O 4 ) solid-solution series

Crystal chemistry of the MgAl 2 O 4 -MgMn 2 O 4 -MnMn 2 O 4 system: Analysis of structural distortion in spinel- and hausmannite-type structures