News from the hellandite group: the redefinition of mottanaite and ciprianiite and the new mineral description of ferri-mottanaite-(Ce), the first Fe 3+ -dominant hellandite

Capranicaite, (K,□)(Ca,Na)Al 4 B 4 Si 2 O 18 : a new inosilicate from Capranica, Italy, with a peculiar topology of the periodic single chain [Si 2 O 6 ]

The role of photosynthesis and CO 2 evasion in travertine formation: a quantitative investigation at an important travertine-depositing hot spring, Le Zitelle, Lazio, Italy

The crystal structure of piergorite-(Ce), Ca 8 Ce 2 (Al 0.5 Fe 0.5 3+ ) ∑1 (□,Li,Be) 2 Si 6 B 8 O 36 (OH,F) 2 : A new borosilicate from Vetralla, Italy, with a modified hellandite-type chain

Cyanobacteria associated with hot spring travertines

The crystal structure of peprossiite-(Ce), an anhydrous REE and Al mica-like borate with square-pyramidal coordination for Al

Zr- and LREE-rich titanite from Tre Croci, Vico volcanic complex (Latium, Italy)

Vicanite-(Ce); a new Ca-Th-REE borosilicate from the Vico volcanic district (Latium, Italy)

SEM imaging of bacteria and nannobacteria in carbonate sediments and rocks

Mineralogy and petrology of an unusual osumilite + vanadium-rich pseudobrookite assemblage in an ejectum from the Vico volcanic complex (Latium, Italy)