Details
| Original language | English |
|---|---|
| Pages (from-to) | 301-314 |
| Number of pages | 14 |
| Journal | Clay minerals |
| Volume | 45 |
| Issue number | 3 |
| Publication status | Published - Sept 2010 |
Abstract
Kaolin is found in deposits of economic concentration in the Jabal Al-Harad/Batn El-Ghoul area in southern Jordan. Ten representative kaolin samples were collected from the area and investigated for their mineralogical and chemical composition. Mineral characterization was carried using X-ray powder diffraction (XRD), thermogravimetrical analysis (TGA), differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). X-ray fluorescence (XRF) studies were conducted to determine the chemical composition of the kaolin deposits. Kaolinite was the predominant mineral, followed by quartz, with traces of illite-muscovite, Fe-bearing minerals (hematite), anatase and feldspar. The average chemical composition of the kaolin samples was 58.02 wt.% SiO 2, 28.00% Al2O3, 1.48% Fe2O 3, 1.26% TiO2 and 0.41% K2O (ignited basis). Dehydroxylation and mullitization temperatures (from DTA) were close to the theoretical values. Hexagonal booklets and stacks of kaolinite, as well as individual platelets, were present in the Jabal Al-Harad kaolin. Based on granulometric and descriptive mineralogical analyses, the mineral assemblages and kaolinite morphology, the Jabal Al-Harad kaolin deposit is thought to have originated from greatly weathered surfaces related to the Precambrian basement rocks. The kaolin was found to be suitable for manufacturing of common bricks, medium-fired bricks and sanitary ware, although a beneficiation process would be required; it could also be used in the refractory, white cement, paper and advanced ceramic industries.
Keywords
- ceramics, iron oxides, Jabal Al-Harad deposit, Jordan, kaolin, kaolinite, mineralogy, structural iron
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Clay minerals, Vol. 45, No. 3, 09.2010, p. 301-314.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Geochemical and mineralogical characterization of the Jabal Al-Harad kaolin deposit, southern Jordan, for its possible utilization
AU - Gougazeh, M.
AU - Buhl, J. Ch
PY - 2010/9
Y1 - 2010/9
N2 - Kaolin is found in deposits of economic concentration in the Jabal Al-Harad/Batn El-Ghoul area in southern Jordan. Ten representative kaolin samples were collected from the area and investigated for their mineralogical and chemical composition. Mineral characterization was carried using X-ray powder diffraction (XRD), thermogravimetrical analysis (TGA), differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). X-ray fluorescence (XRF) studies were conducted to determine the chemical composition of the kaolin deposits. Kaolinite was the predominant mineral, followed by quartz, with traces of illite-muscovite, Fe-bearing minerals (hematite), anatase and feldspar. The average chemical composition of the kaolin samples was 58.02 wt.% SiO 2, 28.00% Al2O3, 1.48% Fe2O 3, 1.26% TiO2 and 0.41% K2O (ignited basis). Dehydroxylation and mullitization temperatures (from DTA) were close to the theoretical values. Hexagonal booklets and stacks of kaolinite, as well as individual platelets, were present in the Jabal Al-Harad kaolin. Based on granulometric and descriptive mineralogical analyses, the mineral assemblages and kaolinite morphology, the Jabal Al-Harad kaolin deposit is thought to have originated from greatly weathered surfaces related to the Precambrian basement rocks. The kaolin was found to be suitable for manufacturing of common bricks, medium-fired bricks and sanitary ware, although a beneficiation process would be required; it could also be used in the refractory, white cement, paper and advanced ceramic industries.
AB - Kaolin is found in deposits of economic concentration in the Jabal Al-Harad/Batn El-Ghoul area in southern Jordan. Ten representative kaolin samples were collected from the area and investigated for their mineralogical and chemical composition. Mineral characterization was carried using X-ray powder diffraction (XRD), thermogravimetrical analysis (TGA), differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). X-ray fluorescence (XRF) studies were conducted to determine the chemical composition of the kaolin deposits. Kaolinite was the predominant mineral, followed by quartz, with traces of illite-muscovite, Fe-bearing minerals (hematite), anatase and feldspar. The average chemical composition of the kaolin samples was 58.02 wt.% SiO 2, 28.00% Al2O3, 1.48% Fe2O 3, 1.26% TiO2 and 0.41% K2O (ignited basis). Dehydroxylation and mullitization temperatures (from DTA) were close to the theoretical values. Hexagonal booklets and stacks of kaolinite, as well as individual platelets, were present in the Jabal Al-Harad kaolin. Based on granulometric and descriptive mineralogical analyses, the mineral assemblages and kaolinite morphology, the Jabal Al-Harad kaolin deposit is thought to have originated from greatly weathered surfaces related to the Precambrian basement rocks. The kaolin was found to be suitable for manufacturing of common bricks, medium-fired bricks and sanitary ware, although a beneficiation process would be required; it could also be used in the refractory, white cement, paper and advanced ceramic industries.
KW - ceramics
KW - iron oxides
KW - Jabal Al-Harad deposit
KW - Jordan
KW - kaolin
KW - kaolinite
KW - mineralogy
KW - structural iron
UR - http://www.scopus.com/inward/record.url?scp=78650905999&partnerID=8YFLogxK
U2 - 10.1180/claymin.2010.045.3.301
DO - 10.1180/claymin.2010.045.3.301
M3 - Article
AN - SCOPUS:78650905999
VL - 45
SP - 301
EP - 314
JO - Clay minerals
JF - Clay minerals
SN - 0009-8558
IS - 3
ER -