Mineralienatlas - Fossilienatlas
Marcobaldiite |
Collectors Summary
Lustre | Metallglanz |
Crystal System | triklin, P1 |
Additional information / Summary
Marcobaldiit ist ein N = 3,5 Homologe der Jordanit-homologen Reihe, gekennzeichnet durch den 1:1 Wechsel von zwei Arten von Schichten verzerrter Oktaeder, drei und vier Oktaeder dick, d.h. der Kirkiit- bzw. Jordanit-Typen. Die Schichten sind durch eine atomare Schicht aus drei bigekappten, trigonalen, prismatischen Pb-Atomen und einem triangularem, pyramidalem As-Atom in geteilter Position verbunden. |
Chemism
Chemical formula |
Pb12(Sb3As2Bi)Σ6S21 |
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Empirical formula (analysis) |
Pb11.98Sb2.90As2.33Bi0.79S20.80 |
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Chemical composition |
Antimon, Arsen, Bismut, Blei, Schwefel |
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Analysis wt% |
Pb 64.05(34), |
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Strunz 9th edition incl. updates |
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2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide) |
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IMA status |
anerkannt März 2016 - CNMNC Newsletter No. 30, April 2016 |
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Mineral status |
anerkanntes Mineral |
Optical Properties
Metallglanz |
Crystallography
1 |
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Space Group number |
1 |
P1 |
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Cell parameters a (Å) |
8.9248(9) |
Cell parameters b (Å) |
29.414(3) |
Cell parameters c (Å) |
8.5301(8) |
Cell parameters a/b or c/a |
0.303 |
Cell parameters c/b |
0.29 |
Cell parameters α |
98.336(5)° |
Cell parameters β |
118.175(5)° |
Cell parameters γ |
90.856(5)° |
Z |
2 |
Volume (ų) |
1944.136 |
Jordanit homologe Serie; Struktur bestimmt |
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3.568(ms), 3.202(ms), 3.016(ms), 2.885(ms), 2.233(vs), 2.125(s), 1.848(s), 1.775(vs) |
Physical Properties
6.563 ( ρ calc. Mineralienatlas ) |
(Co-)Type locality
(Co-)Type locality |
Italien/Toskana (Toscana)/Lucca, Provinz/Apuanische Alpen/Pietrasanta/Valdicastello Carducci/Miniera del Pollone/Stanzone Tunnel |
Type material |
Mineralogische Sammlug des Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (Pisa), Italien |
Collection number of type material |
19709 |
Preface
References
Biagioni, C., Pasero, M., Moëlo, Y., Zaccarini, F., Paar, W.H. and Merlino, S. (2016) Marcobaldiite, IMA 2015-109. CNMNC Newsletter No. 30, April 2016, page 410; Mineralogical Magazine, 80, 407–413. BIAGIONI, CRISTIAN; PASERO, MARCO; MOËLO, YVES; ZACCARINI, FEDERICA; PAAR, WERNER H. - Lead-antimony sulfosalts from Tuscany (Italy). XXII. Marcobaldiite, ∼Pb12(Sb3As2Bi)Σ6S21, a new member of the jordanite homologous series from the Pollone mine, Valdicastello Carducci - European Journal of Mineralogy (Dez. 2017) - https://doi.org/10.1127/ejm/2018/0030-2710 |
Other languages
German |
Marcobaldiit |
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English |
Marcobaldiite |
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Russian |
Маркобалдиит |
CNMNC (IMA)-Number
IMA 2015-109 |
CNMNC symbol
Symbol |
Mcb |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | xeV_y7uZ50O3iGF6-ITdYw |
GUID (Global unique identifier) | CB7FE5C5-99BB-43E7-B788-617AF884DD63 |
Database ID | 8103 |