...Anna Garavelli; Daniela Pinto; Donatella Mitolo; Uwe Kolitsch Abstract Thermessaite-(NH 4 ), ideally (NH 4 ) 2 AlF 3 (SO 4 ), is a new mineral found as a medium- to high-temperature (~250–300°C) fumarole encrustation at the rim of La Fossa crater, Vulcano, Aeolian Islands, Italy. The mineral...

...Francesco Demartin; Carlo Castellano; Italo Campostrini Abstract The new mineral acmonidesite, (NH 4 ,K,Pb 2+ ,Na) 9 Fe 4 2+ (SO 4 ) 5 Cl 8 , was found in an active fumarole (fumarole FA, temperature ~250°C) at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs on a pyroclastic...

... unpredictable, phreatic or phreatomagmatic eruptions. We present a simple and innovative analysis of shallow vertical temperature profiles to depths of 70 cm. These data were recorded at La Fossa cone of Vulcano (Aeolian Islands, Italy), during an episode of increased hydrothermal and seismic activities...

...Francesco Demartin; Carlo Castellano; Carlo Maria Gramaccioli Abstract The new mineral campostriniite, (Bi 3+ ,Na) 3 (NH 4 ,K) 2 Na 2 (SO 4 ) 6 ·H 2 O, was found in an active fumarole (fumarole FA, temperature ~350°C) at La Fossa Crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs...

...Anna Garavelli; Daniela Pinto; Donatella Mitolo; Luca Bindi Abstract Leguernite, ideally Bi 12.67 O 14 (SO 4 ) 5 , is a new mineral found in high-temperature fumarolic assemblages at La Fossa crater, Vulcano, Aeolian Islands, Italy. It occurs as aggregates of needle-shaped crystals associated...

...D. Pinto; A. Garavelli; D. Mitolo Abstract Balićžunićite, ideally Bi 2 O(SO 4 ) 2 , is a new mineral found as a high-temperature fumarole sublimate ( T = 600°C) at La Fossa crater, Vulcano, Aeolian Islands, Italy. It occurs as aggregates of μm-sized prismatic and elongated crystals (~50 μm across...

...F. Demartin; C. Castellano; I. Campostrini Abstract The new mineral therasiaite, ideally (NH 4 ) 3 KNa 2 Fe 2+ Fe 3+ (SO 4 ) 3 Cl 5 , was found in a medium-temperature (~250°C) intracrater active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs on a pyroclastic...

...F. Demartin; C. Castellano; I. Campostrini Abstract The new mineral aluminopyracmonite, ideally (NH 4 ) 3 Al(SO 4 ) 3 , was found in a medium-temperature (~250°C) intracrater active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs on a pyroclastic breccia...

...Anna Garavelli; Donatella Mitolo; Daniela Pinto; Filippo Vurro Abstract Lucabindiite, ideally (K,NH 4 )As 4 O 6 (Cl,Br), is a new mineral found as a medium-temperature fumarole encrustation ( T = 170 °C) at “La Fossa” crater of Vulcano, Aeolian Islands, Italy. The mineral deposited as aggregates...

... on a pyroclastic breccia in two different fumaroles at “La Fossa” crater of Vulcano, Aeolian Islands, Italy, and corresponds to an anthropogenic product previously observed in a burning coal dump at the Anna mine, near Aachen, Germany. The mineral is tetragonal, space group I 4 1 / acd (no. 142), with a = 18.261(2...

...Francesco Demartin; Italo Campostrini; Carlo Castellano; Carlo Maria Gramaccioli Abstract The new mineral argesite, ammonium bismuth chloride (NH 4 ) 7 Bi 3 Cl 16 , was found in a medium-temperature (~250 °C) active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. The mineral...

...F. Demartin; C. M. Gramaccioli; I. Campostrini; C. Castellano Abstract Cossaite, ideally (Mg 0.5 ,□)Al 6 (SO 4 ) 6 (HSO 4 )F 6 ·36H 2 O, was found in the altered pyroclastic breccia of an active fumarole ( T about 350°C) located at the rim of the La Fossa crater, Vulcano Island, Aeolian archipelago...

...Francesco Demartin; Carlo Maria Gramaccioli; Italo Campostrini Abstract Clinometaborite, β-HBO 2 , the monoclinic modification of metaboric acid, which has long been known as a synthetic product only, was found as a sublimate in an active medium-temperature intracrater fumarole at La Fossa crater...

...Francesco Demartin; Carlo Maria Gramaccioli; Italo Campostrini Abstract The new mineral species pyracmonite , ideally (NH 4 ) 3 Fe(SO 4 ) 3 , was found in a medium-temperature (~250°C) active intracrater fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs...

...Francesco Demartin; Carlo Maria Gramaccioli; Italo Campostrini Abstract The new mineral species adranosite, (NH 4 ) 4 NaAl 2 (SO 4 ) 4 Cl(OH) 2 , was found in a medium-temperature (~250°C) active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. The mineral occurs...

...Francesco Demartin; Carlo Maria Gramaccioli; Italo Campostrini; Tullio Pilati Abstract Aiolosite, ideally Na 4 Bi(SO 4 ) 3 Cl, or better Na 2 (Na 2 Bi)(SO 4 ) 3 Cl, is a new sulfate mineral isotypic to apatite. It was found in an active medium-temperature intracrater fumarole at La Fossa crater...

...F. Demartin; C. M. Gramaccioli; I. Campostrini Abstract Demicheleite-(I), ideally BiSI, is the iodine-dominant analogue of demicheleite-(Br) and demicheleite-(Cl). It was found in an active medium-temperature intracrateric fumarole at La Fossa crater, Vulcano Island, Aeolian archipelago, Sicily...

...Francesco Demartin; Carlo Maria Gramaccioli; Italo Campostrini Abstract The new mineral species brontesite , ammonium lead chloride (NH 4 ) 3 PbCl 5 , was found in a medium-temperature (~250°C) active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. The mineral occurs...

... in a natural environment, and it is identical with the corresponding and already known synthetic compound. It was found in an active medium-temperature intracrater fumarole at La Fossa crater, Vulcano Island, Aeolian archipelago, Sicily, Italy. The mineral occurs as acicular to stout translucent crystals up...