Quartz chemistry of granitic pegmatites: Implications for classification, genesis and exploration

Müller, Axel; Keyser, William; Simmons, William B.; Webber, Karen L.; Wise, Michael A.; Beurlen, Hartmut; Garate-Olave, Idoia; Roda-Robles, Encarnación; Galliski, Miguel Ángel

doi:10.1016/j.chemgeo.2021.120507

Cited by 39 publications

(6 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 13 Aluminium versus Ga in pegmatite quartz of different origin (data from Müller et al, 2021; NYZ = Nb/Y/F-pegmatite, LCT = Li/Cs/Ta-pegmatite according to Černỳ and Ercit, 2005). hydrothermal quartz, rhombs = pegmatite quartz; data from Götze et al 2004Götze et al , 2017.…”

Section: Discussionmentioning

confidence: 99%

“…In most of the investigated quartz, Ga showed concentrations between 0.02 and 0.4 ppm and amethyst had generally high Ga up to limits for trace-element determination, have not confirmed such high Ga contents in natural quartz, and only chalcedony and macrocrystalline quartz of agates had Ga contents of 1 -2 ppm (Götze et al, 2015a). Müller et al (2021) showed however that Al and Ga concentrations in quartz correlate (Fig. 13).…”

Section: Mineral Chemistry Of Quartzmentioning

confidence: 92%

See 1 more Smart Citation

Mineralogy and mineral chemistry of quartz: A review

Götze

Pan

Müller

2021

MinMag

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Mineral Chemistry Of Quartzmentioning

confidence: 92%

Mineralogy and mineral chemistry of quartz: A review

Götze

Pan

Müller

2021

MinMag

Self Cite

View full text Add to dashboard Cite

show abstract

“…The origin of both, leucogranites and the fractionated LCT rare-element pegmatites of TPD, was attributed to episodic anatexis that occurred during the late stage of the Famatina terrane-continent collision (≈450-460 Ma). Quartz chemistry of some of its pegmatites allowed us to classify them in the category of DPA-1 (direct product of anatexis enriched in Be-Nb-Ta-P-Li, [77].…”

Section: Totoral Pegmatite District (Tpd)mentioning

confidence: 99%

The Li-Bearing Pegmatites from the Pampean Pegmatite Province, Argentina: Metallogenesis and Resources

et al. 2022

Self Cite

View full text Add to dashboard Cite

The Li-bearing pegmatites of the Pampean Pegmatite Province (PPP) occur in a rare-element pegmatite belt developed mainly in the Lower Paleozoic age on the southwestern margin of Gondwana. The pegmatites show Li, Rb, Nb ≤ Ta, Be, P, B, Bi enrichment, and belong to the Li-Cs-Ta (LCT) petrogenetic family, Rare-Element-Li (REL-Li) subclass; most of them are of complex type and spodumene subtype, some are of albite-spodumene type, and a few of petalite subtype. The origin of the pegmatites is attributed predominantly to fractionation of fertile S-type granitic melts produced by either fluid-absent or fluid-assisted anatexis of a thick pile of Gondwana-derived turbiditic sediments. Most of the pegmatites are orogenic (530–440 Ma) and developed during two overlapped collisional orogenies (Pampean and Famatinian); a few are postorogenic (~370 Ma), related to crustal contaminated A-type granites. The pegmatites were likely intruded in the hinterland, preferably in medium-grade metamorphic rocks with PT conditions ~200–500 MPa and 400–650 °C, where they are concentrated in districts and groups. Known combined resources add up 200,000 t of spodumene, with variable grades between 5 and 8 wt.% Li2O. The potential for future findings and enlargement of the resources is high, since no systematic exploration program has yet been developed.

show abstract

“…Due to its unique geographical location, China has a large amount of weathered granite that urgently needs to be comprehensively utilized [12][13][14]. By using beneficiation techniques, quartz, sodium feldspar, and potassium feldspar can be separated from weathered granite, removing colored impurities such as mica, iron, and titanium minerals [15][16][17]. The combination of gravity separation and magnetic separation can reduce the content of colored impurities [18].…”

Section: Introductionmentioning

confidence: 99%

Efficient Recovery of Feldspar, Quartz, and Kaolin from Weathered Granite

Huang,

Li,

Gou

et al. 2024

Minerals

View full text Add to dashboard Cite

Weathered granite contains a high concentration of feldspar, quartz, and kaolin. However, while it becomes rich in clay due to strong physical weathering, the granite minerals that are not fully weathered are still very hard, which makes the grinding process more difficult and limits its use. This study proposes a multi-step process involving grinding, desliming, and flotation to address this issue. The study determines the appropriate grinding time and power index for the original ore, as well as the optimal desliming method using a hydrocyclone. To remove iron-containing impurities like mica, a combination of NaOL/BHA/A CO collectors is used for the reverse rough flotation of quartz. Additionally, a combination of DDA/SDS collectors is employed to separate quartz and feldspar through flotation, resulting in a quartz product with a silicon dioxide content of 99.51%. The objective of efficiently recycling feldspar, quartz, and kaolin from weathered granite is accomplished. Additionally, the inclusion of intermediate mineral components as by-products of feldspar and raw materials for aerated bricks is introduced, resulting in the complete utilization of all components. This innovative approach ensures a clean and environmentally friendly process, eliminating the need for solid waste disposal.

show abstract

Quartz chemistry of granitic pegmatites: Implications for classification, genesis and exploration

Cited by 39 publications

References 59 publications

Mineralogy and mineral chemistry of quartz: A review

Mineralogy and mineral chemistry of quartz: A review

The Li-Bearing Pegmatites from the Pampean Pegmatite Province, Argentina: Metallogenesis and Resources

Efficient Recovery of Feldspar, Quartz, and Kaolin from Weathered Granite

Contact Info

Product

Resources

About