Mineralogical characterization and physical upgrading of radioactive and rare metal minerals from Wadi Al-Baroud granitic pegmatite at the Central Eastern Desert of Egypt

Fawzy, Mona M.; Mahdy, Nasser M.; Sami, Mabrouk

doi:10.1007/s12517-020-05381-z

Cited by 24 publications

(19 citation statements)

References 18 publications

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“…Three representative technology samples were used in this work from Wadi, Delta, and Diit lens, each weighing about 20 to 25 kg. Initially, grain size distribution analyses were performed for each of the three samples using a representative sample weighing about 250 g. The samples were sieved using 2, 1, 0.5, 0.25, 0.125 and 0.063 mm (ASTM codes 13 ) sieve series representing gravel, very coarse sand (V.C. sand), coarse sand (C. sand), medium sand (M. sand), fine sand (F. sand), very fine sand (V.F.…”

Section: Sampling and Methodologymentioning

confidence: 99%

Recovery of valuable heavy minerals via gravity and magnetic separation operations from Diit Quaternary stream sediments, southern coast of the Red Sea, Egypt

Fawzy

Ghar

Gaafar

et al. 2022

J. Phys.: Conf. Ser.

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This research aims to concentrate and recover valuable heavy minerals (VHMs) contained in Diit area, southern coast of the Red Sea, Egypt. In this study, three technological samples were collected representing Lens, Delta and Wadi Diit; mineralogical investigation followed by mineral processing was performed in order to recover VHM content. VHMs such as zircon, ilmenite, rutile, sphene, apatite, garnet, and magnetite have been recorded in associations with lesser amounts of uranothorite, monazite, xenotime, fergusonite, khatyrkite, and gold. Initially, two stage wet gravity concentration processes, rougher and scavenger, were carried out via a shaking table to produce a clean concentrate of VHMs, which was used as feed material for the magnetic separation process. Magnetic separation was performed in order to separate ferromagnetic minerals from paramagnetic minerals as well as diamagnetic minerals to obtain clean concentration of these fractions. Assay and Material balance of the concentration steps proved that the THM content of Diit lens increased to 89.70% with a recovery of 91.68% in a weight of 61.08% out of the original sample. While the percentage of THM content in Wadi and Delta Diit samples increased to 48.68 and 47.67% respectively, with recovery equivalent to 71.67 and 82.06% respectively in a weight of 16.51, 18.7% respectively out of the original sample. Finally, a process flowsheet was created according to the optimum conditions for concentration and separation processes.

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Section: Sampling and Methodologymentioning

confidence: 99%

Recovery of valuable heavy minerals via gravity and magnetic separation operations from Diit Quaternary stream sediments, southern coast of the Red Sea, Egypt

Fawzy

Ghar

Gaafar

et al. 2022

J. Phys.: Conf. Ser.

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“…Most of magmatic rocks in the ANS were emplaced during the Neoproterozoic age, therefore the ANS is one of the largest juvenile crustal terrains on the Earth. , The Egyptian Eastern Desert is located in the extreme northern part of the Nubian Shield (Figure ). Several localities of the late Neoproterozoic, highly fractionated rare-metal granites, crop out in the Eastern Desert of Egypt, associated with economic to sub-economic polymetallic mineralization. − The central Eastern Desert of Egypt contains many of the economic and geochemically specialized rare-metal granitic intrusions (Figure ). The majority of the rare-metal granitic plutons, including Abu Dabbab, were emplaced during the late Neoproterozoic post-collisional stage between 644 and 540 Ma. , …”

Section: Geologic Settingmentioning

confidence: 99%

Unraveling the Genesis of Highly Fractionated Rare-Metal Granites in the Nubian Shield via the Rare-Earth Elements Tetrad Effect, Sr–Nd Isotope Systematics, and Mineral Chemistry

Sami

Monsef

Abart

et al. 2022

ACS Earth Space Chem.

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The rare-metal granites of the Nubian Shield are commonly associated with Nb−Ta and Sn mineralization. The magmatic and hydrothermal evolution of these granites and their relation to the Nb−Ta and Sn mineralization need further investigations. This study reports new mineral chemistry, wholerock geochemical, and Sr−Nd isotopic data for the Abu Dabbab granites in the Central Eastern Desert of Egypt to provide new insights into the formation mechanisms of the granites and their associated rare-metal mineralization. The granites consist mainly of albite, orthoclase, quartz, and Li-phengite, with accessory minerals including cassiterite, columbite, tantalite, wodginite, and Hf-zircon. Geochemically, they are peraluminous with high SiO 2 , alkalis, Rb, Nb, Ta, Sn, F, and low contents of MgO, CaO, and P 2 O 5 . The granites are characterized by distinct rare-earth element tetrad effects (TE 1,3 = 1.8−2.5), with strongly negative Eu anomalies and are extremely depleted in Ba, Sr, P, and Ti. These features imply that they are typical muscovite peraluminous highly evolved granites. Isotopically, they display positive εNd(t) values (+1.11 to +8.32) and two-stage Nd depleted model ages (t DM2 ) between 0.68 and 1.13 Ga, suggesting a juvenile magma source of the Neoproterozoic age. The Abu Dabbab granites could be formed by dehydration melting of muscovite-rich crustal materials followed by extensive fractional crystallization with a significant role of magmatic−hydrothermal fluids during the transitional orogenic stage of the Nubian Shield.

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“…As to the commercial scale of rare metals extraction, the only successful attempts to extract rare metals in Egypt are limited to the exploration and extraction of gold from a number of mines in the Sukkary (Centamine Limited) and Hamash (Hamash Co.) areas, Eastern Desert. In both areas, commercial production has just started using surface, open pit-open cast mining techniques [14,61].…”

Section: Processing and Extraction Of Rare Metals In Egyptmentioning

confidence: 99%

Geology of Rare Metals in Egypt- A review

Baioumy

2021

International Journal of Materials Technology and Innovation

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The term "rare metals" refers in this work to metals with a low availability in natural. Based on their chemistry, rare metals were classified into; 1) rare earth elements (La-Lu), 2) trace elements (Nb, Ta, Mo, Cu, Ni, Co, Sn, W, V), 3) noble elements (Au, Ag, and PGE) and 4) fissionable elements (U and Th). In Egypt, rare earth elements occur in the phosphorites, monazite and granites. Trace elements occur in three associations; a) elements in granites and albite granites such as Nb, Ta, Sn, Mo, and W, b) elements associate mafic rocks and ophiolites include Cu, Ni, and Co, and c) V in the black shales. 95 Au localities were reported mainly as vein-type mineralization in the Eastern Desert. PGE are confined to three associations including mafic and ultramafic rocks, chromite and black shales as sulfides, alloys, and organometallic compounds, respectively. Uranium occurs in granites of the Eastern Desert. Thorium was reported at the Um Ara area at the Eastern Desert and in the monazite from the black sands. Although rare metals are quite common in Egypt, processing and beneficiations of the rare metals-bearing rocks did not reflect the abundance and the economic significance of these metals.

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Mineralogical characterization and physical upgrading of radioactive and rare metal minerals from Wadi Al-Baroud granitic pegmatite at the Central Eastern Desert of Egypt

Cited by 24 publications

References 18 publications

Recovery of valuable heavy minerals via gravity and magnetic separation operations from Diit Quaternary stream sediments, southern coast of the Red Sea, Egypt

Recovery of valuable heavy minerals via gravity and magnetic separation operations from Diit Quaternary stream sediments, southern coast of the Red Sea, Egypt

Unraveling the Genesis of Highly Fractionated Rare-Metal Granites in the Nubian Shield via the Rare-Earth Elements Tetrad Effect, Sr–Nd Isotope Systematics, and Mineral Chemistry

Geology of Rare Metals in Egypt- A review

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