| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Ardit, Matteo
University of Padua
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy
- 2023Porcelain Versus Porcelain Stoneware: So Close, So Different. Sintering Kinetics, Phase Evolution, and Vitrification Pathscitations
- 2023Possible hazardous components in dental alginates: Physicochemical properties by a mineralogical and spectroscopic investigation
- 2023Microstructure and phase evolution of micronized ceramic colorants from a pilot plant for inks productioncitations
- 2022Chemical and mechanical stability of BCZY-GDC membranes for hydrogen separationcitations
- 2021(Sn,Ti,Nb)xO2 Solid Solution: An Innovative Nanostructured Material and Its Chemoresistive Properties
- 2020Phase evolution during reactive sintering by viscous flow: Disclosing the inner workings in porcelain stoneware firingcitations
- 2019Role of the sintering atmosphere in the densification and phase composition of asymmetric BCZY-GDC composite membranecitations
- 2018Viscous flow sintering of porcelain stoneware revisited
- 2018Predicting viscosity and surface tension at high temperature of porcelain stoneware bodies: A methodological approachcitations
- 2018High temperature viscosity of porcelain stoneware bodies
- 2017Compressional features of orthorhombic perovskites
- 2016Ni-Ti codoped hibonite ceramic pigments by combustion synthesis: crystal structure and optical propertiescitations
- 2015Effect of transition metal ions on the compressibility of orthorhombic perovskites
- 2015Ni-Ti co-doped hibonite ceramic pigments by combustion synthesis: crystal structure and optical properties
- 2015Compressibility of orthorhombic perovskites. The effect of transition metal ions (TMI)citations
- 2015Pigments Based on Perovskitecitations
- 2015Limited crystallite growth upon isothermal annealing of nanocrystalline anatasecitations
- 2014Effect of Transition Metal Ions (TMI) on the compressibility of orthorhombic perovskites
- 2012Lattice relaxation in solid solutions: long-range vs. short-range structure around Cr3+ and Co2+ in oxides and silicates
- 2012Malayaite ceramic pigments: A combined optical spectroscopy and neutron/X-ray diffraction studycitations
- 2012Effect of tetrahedrally coordinated Co2+ in spinel and melilite solid solutions
- 2009Sol–gel combustion synthesis of chromium doped yttrium aluminum perovskitescitations
- 2009Ti–Ca–Al-doped YCrO3 pigments: XRD and UV–vis investigationcitations
- 2009Malayaite Ceramic Pigments: a Combined Optical Spectroscopy and Neutron/X-ray Diffraction Studycitations
- 2009Malayaite ceramic pigments: A combined optical spectroscopy and neutron/X-ray diffraction studycitations
Places of action
| Organizations | Location | People |
|---|
article
Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy
Abstract
<jats:title>ABSTRACT</jats:title><jats:p>Perchiazziite, ideally Co2(CO3)(OH)2, is a new mineral discovered at the Monte Ramazzo Mine, Genova Province, Liguria, Italy. It occurs as globular aggregates up to 0.1 mm in diameter, composed of very thin fibers. These develop on a matrix composed mostly of goethite and magnetite, in association with calcite and Co-bearing malachite. Aggregates of perchiazziite are pale orange-pink on their outer surfaces but white in thin section. It is translucent with white streak, silky luster, brittle tenacity, and uneven fracture. No cleavage and parting are observed. The Mohs hardness is ∼4. Dcalc. = 3.970 g/cm3. The mean refractive index calculated using the Gladstone-Dale equation is 1.77. The main bands in the Raman spectrum are at 154, 511, 707, 1085, 1526, 3304, aXnd 3479 cm−1. The chemical composition (by electron microprobe; CO2 and H2O by stoichiometry) of perchiazziite is (in wt.%): MgO 1.81, CaO 0.41, MnO 0.32, FeO 0.12, CoO 32.45, NiO 4.02, CuO 5.40, ZnO 25.60, CO2 20.63, H2O 8.42, total 99.18. The empirical formula calculated on the basis of 5 O apfu is: (Co0.93Zn0.67Cu0.15Ni0.12Mg0.10Ca0.02Mn0.01)Σ2.00(CO3)(OH)2. The crystal structure was refined by the Rietveld method. Perchiazziite is monoclinic, space group P21/a, a = 12.1832(16) Å, b = 9.3187(16) Å, c = 3.1570(3) Å, β = 97.165(15)°, V = 355.62(8) Å3, and Z = 4. The strongest lines of the X-ray powder diffraction pattern [d, Å (I, %) (hkl)] are 6.040 (22) (200), 5.073 (38) (210), 3.694 (53) (220), 2.599 (100) (021), 2.535 (26) (420), 2.480 (27) (221̄), 2.140 (26) (231̄), 1.561 (25) (202̄). Perchiazziite is a new member of the rosasite–malachite group.</jats:p>