A new occurrence of pyrite crystals with rhombohedral habit, up to several centimeters in length, is described from the Madan Pb–Zn ore field (Rhodope Massif, south Bulgaria), where it constitutes a late pyrite
EJM - Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore …
2023年5月24日 · Sulfide ores from the Madan ore field, especially those from the Borieva mine, provide a top sampling material for the characterization of rhombohedral pyrite as a new variety of pyrite, pseudo-cubic trigonal (pyrite-R), with various twin types by merohedry.
(PDF) Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore …
2023年5月24日 · Twinning by metric merohedry confirms such a symmetry decrease and permits the definition of this type of pyrite as a dimorph of cubic pyrite, i.e., pseudo-cubic trigonal pyrite...
Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore field …
Twinning by metric merohedry confirms such a symmetry decrease and permits the definition of this type of pyrite as a dimorph of cubic pyrite, i.e., pseudo-cubic trigonal pyrite (pyrite-R). Twin operations belong to the set of symmetry operations absent in point group 3‾ relative to pyrite symmetry m3‾: reflection about the {100} plane or ...
Trace element characteristics of pyrite in Dongguashan Cu …
2020年12月1日 · In this study, in situ (LA-ICP-MS and EPMA) elemental compositions of medium-to coarse-grained euhedral pyrite from the stratiform and skarn ore bodies, and pyritization marble are investigated in the Dongguashan deposit.
Pyrite textural, trace elemental and sulfur isotope signatures of …
2022年10月1日 · We identify-three pyrite generations (Py1, Py2, Py3a, and Py3b) in the Badu deposit. Py1 is the pyrite core in the siltstone, characterized by the enrichment of Cu, Zn, Co, Ni, and Se. Py2 is the pyrite core in the diabase, and has low As and Au contents.
"Alteration, Mineralization, and Stable Isotope Geochemistry …
2014年5月1日 · Element maps generated by laser ablation-inductively coupled plasma-mass spectrometry demonstrate that primary Au is in solid solution with pyrite or arsenian pyrite forming patchy concentrations and enriched rims. Secondary and possibly remobilized Au occurs as disseminated electrum and native gold along fractures in silicified rocks.
Twin classification of pyrite-R from the Madan ore field.
Download scientific diagram | Twin classification of pyrite-R from the Madan ore field. from publication: Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore field (Rhodope Massif, Bulgaria...
Piezoelectricity in perovskite-type pseudo-cubic ferroelectrics …
2020年10月6日 · In this study, we determine the mechanism of significant piezoelectricity and ferroelectricity in 0.3BaTiO 3 –0.1Bi (Mg 1/2 Ti 1/2)O 3 –0.6BiFeO 3 ceramic with a perovskite-type pseudo-cubic...
Pyrite trace element and S-Pb isotopic evidence for ... - Springer
The Pb isotope composition of Stage-1 pyrite is suggestive of a mantle source similar to that of the Shuiquangou syenite, whereas Stage-2 pyrite has more radiogenic Pb isotopic compositions suggestive of an Archean metamorphic source.
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