Sodium scandium diphosphate, NaScP2O7, isotypic with α-NaTi(III)P2O7

Autor: Zdirad Žák, Jan Cempírek, Radek Škoda

Publikováno v: Acta Crystallographica Section E, Vol 65, Iss 12, Pp i86-i86 (2009)

Crystals of the title compound, NaScP2O7, were grown by a flux method. The crystal structure is isotypic with those of α-NaTiP2O7, NaYbP2O7 and NaLuP2O7, and is closely related to that of NaYP2O7. The structural set-up consists of a three-dimensiona

Externí odkaz: https://doaj.org/article/393518c01caf4fc2b6a7ececad05209e

Uvite, CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH), a new, but long-anticipated mineral species of the tourmaline supergroup from San Piero in Campo, Elba Island, Italy

Autor: Ferdinando Bosi, Cristian Biagioni, Federico Pezzotta, Henrik Skogby, Ulf Hålenius, Jan Cempírek, Frank C. Hawthorne, Aaron J. Lussier, Yassir A. Abdu, Maxwell C. Day, Mostafa Fayek, Christine M. Clark, Joel D. Grice, Darrell J. Henry

Publikováno v: Mineralogical Magazine. 86:767-776

Uvite, CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH), is a new mineral of the tourmaline supergroup. It occurs in the Facciatoia quarry, San Piero in Campo, Elba Island, Italy (42°45′04.55″N, 10°12′50.89″E) at the centre of a narrow (2–3 cm wide) v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::128feed30a2cd1eaa43d01a053962f6d
https://doi.org/10.1180/mgm.2022.54

The Position of Vanadium in the Crystal Structure of Zoisite, Variety Tanzanite: Structural Refinement, Optical Absorption Spectroscopy and Bond-Valence Calculations

Autor: Peter Bacik, Manfred Wildner, Jan Cempírek, Radek Škoda, Peter Cibula, Tomáš Vaculovič

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b804f4744bbfe3541296889b1b8e63b2
https://doi.org/10.2139/ssrn.4347413

Magnesio-lucchesiite, CaMg3Al6(Si6O18)(BO3)3(OH)3O, a new species of the tourmaline supergroup

Autor: Lee A. Groat, R. James Evans, Paolo Orlandi, Andrea Dini, Marco Pasero, Ulf Hålenius, Jan Cempírek, Emily D. Scribner, Ferdinando Bosi, Cristian Biagioni

Publikováno v: The American mineralogist 106 (2021): 862–871. doi:10.2138/am-2021-7496
info:cnr-pdr/source/autori:Emily D. Scribner1,2, Jan Cempírek3, Lee A. Groat2, R. James Evans2, Cristian Biagioni4, Ferdinando Bosi5, Andrea Dini6, Ulf Hålenius7, Paolo Orlandi4, and Marco Pasero4/titolo:Magnesio-lucchesiite, CaMg3Al6(Si6O18)(BO3)3(OH)3O, a new species of the tourmaline supergroup/doi:10.2138%2Fam-2021-7496/rivista:The American mineralogist/anno:2021/pagina_da:862/pagina_a:871/intervallo_pagine:862–871/volume:106

Magnesio-lucchesiite, ideally CaMg3Al6(Si6O18)(BO3)3(OH)3O, is a new mineral species of the tourmaline supergroup. The holotype material was discovered within a lamprophyre dike that cross-cuts tourmaline-rich metapelites within the exocontact of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5d4519ee905e15f6935f947f4e34f91
https://doi.org/10.2138/am-2021-7496

Secondary beryl in cordierite/sekaninaite pseudomorphs from granitic pegmatites – A monitor of elevated content of beryllium in the precursor

Autor: Adam Pieczka, Petr Gadas, Milan Novák, Michaela Vašinová Galiová, Jan Cempírek, Jakub Haifler, Adam Szuszkiewicz

Publikováno v: The Canadian Mineralogist. 58:785-802

Cordierite-group minerals (cordierite and sekaninaite) from granitic pegmatites are often strongly to completely altered to a fine- or coarse-grained mixture of muscovite, chlorite and/or, biotite, along with several less common secondary minerals, i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb525f67251c247f39a818f016ea6d4b
https://doi.org/10.3749/canmin.2000014