Evaluation of granitic rocks as feldspar source: Al Madinah, Western Part of Saudi Arabia

Abstract

The source of the feldspar is found in the Late-Precambrian granitoid rocks of Al Madinah area, which covers about 2000 km 2 within a 44,000 km 2 area of the western part of Saudi Arabia. Petrographical and geochemical study shows that the granitic rocks have a considerable compositional range from quartz monzonite, quartz syenite, syenite, alkali granite to alkali feldspar granite. Mineralogical and petrographical results have revealed that Al Madinah granites are composed of quartz, K-feldspar, Na-plagioclase and muscovite. Geochemical data for the feldspar samples show average SiO

Mineralogy, Petrography and Geochemistry of the Ina Syenite (Linté, Central Cameroon) as a Source of Industrial Feldspars

“…The Figure 16(b) [57] shows the potassic character of the Ina syenite. In addition, the result show higher total alkali content of Ina syenite compared to the feldspar ore of the world's specialized feldspars ores [Germany (9 wt%), Sweden (8.83 wt%), Norway (9.20 wt%), Czech (7.89 wt%) and Japan (7.58 wt%)] [17].…”

“…Gold mineralization and rare earth elements are also exploited in some syenites [12] [13] [14] [15] [16]. They are also used as filler in the paint industries [17]. Syenite is exploited as an alternative source of feldspathic flux for the ceramic and glass industry [3] [6] [10] [17]- [24].…”

“…Syenite is exploited as an alternative source of feldspathic flux for the ceramic and glass industry [3] [6] [10] [17]- [24]. Feldspars are mainly mined in albitites, aplites and pegmatites [17] [22]. However, these deposits are being depleted at a tremendous rate while the global demand for feldspars remains strong, forcing manufacturers to look for new rock ores rich in feldspars and relatively poor in quartz and ferromagnesian minerals such as syenites.…”

Petrographic and geochemical analyses of dune sands from southeastern Mexico, Oaxaca, Mexico

“…and volcano-sedimentary units (Mvs). Denudation of granitic rocks could then provide K-feldspar enrichment compared to the plagioclase content at both sand areas (Glaznet & Johnson, 2013;Gougazeha, Bamousaa, & Hasana, 2018;Vernon, 1986) (Figure 8b; Figure 11).…”

Recent Advances in the Reutilization of Granite Waste in Various Fields

“…Feldspars are important raw materials for the ceramic and glass industries, and the non-renewable mineral resources are increasingly being consumed. Granite waste contains a considerable amount of Kfeldspar and Na-plagioclase, with an average content of 28.5% and 39.7%, respectively, making it a potential source of feldspar minerals [65,66]. Beneficiation methods recover quartz, albite and potash feldspar from granite waste, and remove the colored impurities such as mica, iron oxides and ferro-titanium gangue.…”