2023121 · Since the pyrite may be altered by different geofluids and the pyrite geochemistry will be inhomogeneous even in one ore-forming stage, the visualization of pyrite classification in LDA can be used to constrain the …
view more2019111 · However, when Au is mineralogically associated with the sulphides, or when high pyrite content in the ore poses a problem, different processing routes are possible (e.g., bulk flotation of Au and the sulphides, or sequential flotation).
view more202141 · The main contributions are described as follows: (1) A complete process of gold recovery from sulfide refractory gold ore was proposed and the gold was effectively recovered; (2) Pyrite was first used to enhance the chlorination roasting; (3) Thermodynamic analysis and laboratory experiments verified the feasibility and reliability of the process.
view more202341 · In this study, the mineralogical characteristics of a low-grade refractory gold ore were analyzed by a variety of analytical techniques and methods. The ore composition was obtained by chemical analysis, and the main minerals include gold, pyrite, arsenopyrite, feldspar, mica, and quartz.
view more2021624 · INTRODUCTION The discovery rate of new gold deposits is in decline worldwide, with the ore quality degrading in parallel to the precious metal value increasing. Ores with invisible gold are characterized by trace amounts of gold hosted in sulfide minerals (from a few parts per million to several thousand parts per million), predominantly pyrite …
view more2019826 · The pyrite processing mostly in flotation, flowed by the gravity separation process, and gravity-flotation combination. For ore with simple ore properties, coarser grain size or uneven grain size, a single gravity separation process can be used. General gravity separation equipment, such as pyrite jig, spiral chute, hydrocyclone, shaker tables ...
view more20231128 · Pyrite geochemistry is crucial for the discrimination of the types of ore-forming fluids in gold deposits, such as metamorphic–hydrothermal fluids and magmatic–hydrothermal fluids. With the assistance of supervised machine learning algorithms, this application can be leveraged maximally. Here, laser ablation inductively …
view more201891 · Request PDF | Genesis and evolution of framboidal pyrite and its implications for the ore-forming process of Carlin-style gold deposits, southwestern China | Southwestern Guizhou, an indispensable ...
view more202381 · Some structurally lattice-bound gold occurs in proximal As-Au-Ni–enriched pyrite associated with sericite-albite-ankerite alteration. Vein textures and proximal pyrite oscillatory zoning and geochemical signatures indicate that vein infilling occurred as a response to sudden pressure drops and boiling of the mineralizing fluid.
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