Perchiazziite, Co2(CO3)(OH)2, a New Member of the
Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy

J 2024

Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy

BARBARO, Anna; Fabrizio NESTOLA; Anatoly V. KASATKIN; Matteo ARDIT; Nicola ROTIROTI et. al.

Základní údaje

Originální název

Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy

Autoři

BARBARO, Anna; Fabrizio NESTOLA; Anatoly V. KASATKIN; Matteo ARDIT; Nicola ROTIROTI; Radek ŠKODA (203 Česká republika, domácí); Atali A. AGAKHANOV; Maria Chiara DALCONI a Fabrizio CASTELLARO

Vydání

Canadian Journal of Mineralogy and Petrology, Mineralogical Association of Canada, 2024, 2817-1713

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Kanada

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.100

Kód RIV

RIV/00216224:14310/24:00139120

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.3749/2300048

UT WoS

001238968500007

EID Scopus

2-s2.0-85217051821

Klíčová slova anglicky

perchiazziite; new mineral; Raman spectrum; chemical composition; Rietveld refinement; rosasite-malachite group; Monte Ramazzo Mine; Italy

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 18. 3. 2025 15:06, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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, and 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) forumla⁠, 2.140 (26) forumla⁠, 1.561 (25) forumla⁠. Perchiazziite is a new member of the rosasite–malachite group.

Citovat

BARBARO, Anna; Fabrizio NESTOLA; Anatoly V. KASATKIN; Matteo ARDIT; Nicola ROTIROTI; Radek ŠKODA; Atali A. AGAKHANOV; Maria Chiara DALCONI a Fabrizio CASTELLARO. Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. Canadian Journal of Mineralogy and Petrology. Mineralogical Association of Canada, 2024, roč. 62, č. 2, s. 369-378. ISSN 2817-1713. Dostupné z: https://doi.org/10.3749/2300048.

@article{2485022,
   author = {Barbaro, Anna and Nestola, Fabrizio and Kasatkin, Anatoly V. and Ardit, Matteo and Rotiroti, Nicola and Škoda, Radek and Agakhanov, Atali A. and Dalconi, Maria Chiara and Castellaro, Fabrizio},
   article_number = {2},
   doi = {https://doi.org/10.3749/2300048},
   keywords = {perchiazziite; new mineral; Raman spectrum; chemical composition; Rietveld refinement; rosasite-malachite group; Monte Ramazzo Mine; Italy},
   language = {eng},
   issn = {2817-1713},
   journal = {Canadian Journal of Mineralogy and Petrology},
   title = {Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy},
   url = {https://doi.org/10.3749/2300048},
   volume = {62},
   year = {2024}
}

TY  - JOUR
ID  - 2485022
AU  - Barbaro, Anna - Nestola, Fabrizio - Kasatkin, Anatoly V. - Ardit, Matteo - Rotiroti, Nicola - Škoda, Radek - Agakhanov, Atali A. - Dalconi, Maria Chiara - Castellaro, Fabrizio
PY  - 2024
TI  - Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy
JF  - Canadian Journal of Mineralogy and Petrology
VL  - 62
IS  - 2
SP  - 369-378
EP  - 369-378
PB  - Mineralogical Association of Canada
SN  - 28171713
KW  - perchiazziite
KW  - new mineral
KW  - Raman spectrum
KW  - chemical composition
KW  - Rietveld refinement
KW  - rosasite-malachite group
KW  - Monte Ramazzo Mine
KW  - Italy
UR  - https://doi.org/10.3749/2300048
N2  - 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, and 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) forumla⁠, 2.140 (26) forumla⁠, 1.561 (25) forumla⁠. Perchiazziite is a new member of the rosasite–malachite group.
ER  -

BARBARO, Anna; Fabrizio NESTOLA; Anatoly V. KASATKIN; Matteo ARDIT; Nicola ROTIROTI; Radek ŠKODA; Atali A. AGAKHANOV; Maria Chiara DALCONI a Fabrizio CASTELLARO. Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. \textit{Canadian Journal of Mineralogy and Petrology}. Mineralogical Association of Canada, 2024, roč.~62, č.~2, s.~369-378. ISSN~2817-1713. Dostupné z: https://doi.org/10.3749/2300048.

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