Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

Kostić, Bojan; Srećković-Batoćanin, Danica; Filipov, Petyo; Tančić, Pavle; Sokol, Kristijan

doi:10.31577/geolcarp.72.1.2

Cited by 4 publications

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“…To the best of our knowl edge, only three op ti cally anisotropic and os cil la tory zoned grossular-an dra dite gar net sam ples from Ser bia have been char ac ter ized in more or less de tail by Tanèiae et al (2012aTanèiae et al ( , 2020, Sreaekoviae-Batoaeanin et al (2014) and Kostiae et al (2021), i.e. from skarns of Kopaonik Mt., Rogozna Mt.…”

Section: Introductionmentioning

confidence: 99%

Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia

Tančić¹,

Kremenović

2022

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As so ci ate Editor: Tomasz Bajda Four mac ro scop i cally vis i ble B-E (rim) zones, within a large nat u ral fer ric grossular gar net of Grs 58-64 Adr 36-42 Sps 2 com po sition, are de scribed by means of Rietveld re fine ments of the crys tal struc tures in a se ries of six space groups, fol lowed by com par a tive anal y sis of the R-val ues, site oc cu pancy fac tors, and bond lengths and an gles. The gar net crys tal lized in the rhombohedral R63c space group. Var i ous poly he dral dis tor tions and struc tural or der-dis or der vari a tions be tween the zones stud ied are also de scribed and dis cussed. The rhombohedral sym me try of the fer ric grossular gar net ana lysed can be regarded as pri mary, re sid ual strain be ing a sec ond ary cause for its slight op ti cal ani so tropy.

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Section: Introductionmentioning

confidence: 99%

Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia

Tančić¹,

Kremenović

2022

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“…The SEM and BSE microphotographs of Grs and Chl are presented at Figure 3 and show that there is no visible twinning or zonation in the grossular. The general formula of garnet is [8] {X}3 [6] [Y]2 [4] (Z)3 [4] O12, where the eight-coordinated dodecahedral {X} site contains Ca 2+ , Mg 2+ , Mn 2+ , or Fe 2+ cations; the six-coordinated octahedral [Y] site contains Al 3+ , Cr 3+ , Fe 3+ , Ti 4+ , or Zr 4+ cations; and the four-coordinated tetrahedral (Z) site contains Si 4+ , Al 3+ , or Fe 3+ cations, or (O4H4) groups [19].…”

Section: Sem-eds Studymentioning

confidence: 99%

“…[7], and Rudnik Mts. [8]); 2. We believe that the weak garnet anisotropy could indicate the presence of disymmetrization; there are five possible causes of this, discussed in [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Orthorhombic Crystal Structure of Grossular Garnet (Suva Česma, Western Serbia): Evidence from the Rietveld Refinement

Tančić,

Dušanić,

Erić

2023

Powders

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The grossular garnet from rodingite-type rock from the Suva Česma area in western Serbia is characterized with its weak anisotropic nature. Because its anisotropy could indicate a non-cubic lower symmetry, SEM-EDS and Rietveld powder refinement methods were used. The SEM-EDS results have shown that the garnet has a (Ca3.00Mn0.01)3.01(Al1.82Fe0.15Ti0.02)1.99(Si2.97Al0.03)3.00O12 chemical composition (i.e., Grs91Adr08), which can be more specifically explained as ferric iron containing grossular. The next step further used Rietveld powder refinements of the various crystal structures in the Ia‾3d, R‾3c, R‾3, I41/a, Fddd, C2/c, and I‾1 space groups as well as a single mixture, which was followed by a comparative analysis of the R-values, site occupancy factors, and bond lengths and angles. The synthesis of these results showed both that the studied grossular garnet is not cubic and that it crystallized in the disordered Fddd space group with the final RB = 5.29% and RF = 1.75%. It was presumed that the grossular formed at temperatures between 150 and ~600 °C.

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Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions

Petrović,

Bakker,

Cvetković

et al. 2024

Miner Petrol

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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

Cited by 4 publications

References 0 publications

Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia

Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia

Orthorhombic Crystal Structure of Grossular Garnet (Suva Česma, Western Serbia): Evidence from the Rietveld Refinement

Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions

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