Nuqrah deposit (Nuqrah Mine), Medina Region, Saudi Arabiai
| Regional Level Types | |
|---|---|
| Nuqrah deposit (Nuqrah Mine) | Deposit |
| Medina Region | Region |
| Saudi Arabia | Country |
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Latitude & Longitude:
24° North , 39° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~377km
Locality type:
An ancient mine.
Sedimentary/exhalative-rock (Sedex) gold and base-metals deposit.
At Nuqrah the mineralisation comprises two tabular bodies of massive sulfides, namely North and South Nuqrah, which are located between mafic pyroclastics and flows of the hanging wall, and chloritised rhyolitic tuff and breccia of the footwall. These rocks are tightly folded, faulted, and locally overturned at North Nuqrah.
At both North and South Nuqrah the mineralisation is confined to a narrow stratigraphic horizon comprising graphitic tuff, rhyolitic crystal and lapilli tuff, chloritic tuff, and calcareous dolomite marble.
The mineralisation is fine grained and displays well-developed banding; towards the lower part of the deposit, however, brecciated and fragmental ore predominates. The main ore minerals, in their order of abundance, are sphalerite, pyrite, galena, and chalcopyrite, associated with minor tetrahedrite, arsenopyrite, bournonite, menehinite, polybasite, pyrrhotite, mackinawite, altaite, hessite, tetradymite and gold together with traces of magnetite and ilmenite. The gangue mainly consists of graphyte and carbonate (dolomite). Gold is very argentiferous (electrum variety) and appears in intimate association with hessite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities10 valid minerals.
Detailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah |
| ⓘ Chalcopyrite Formula: CuFeS2 Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah; Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
| ⓘ 'Chlorite Group' Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah |
| ⓘ Galena Formula: PbS Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah; Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
| ⓘ Gold Formula: Au Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah |
| ⓘ Graphite Formula: C Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah |
| ⓘ Linnaeite Formula: Co2+Co3+2S4 Reference: Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
| ⓘ Molybdenite Formula: MoS2 Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah; Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
| ⓘ Pyrite Formula: FeS2 Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah; Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
| ⓘ Pyrrhotite Formula: Fe1-xS Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah |
| ⓘ Sphalerite Formula: ZnS Reference: Al-Shanti, A. M. S. (1995): mineral deposits in the Kingdom of Saudi Arabia. Sci. Publ. Centre, King Abdulaziz University, Jeddah; Nehlig, P., Salpeteur, I., Asfirane, F., Bouchot, V., Eberlé, J. M., & Genna, A. (1999). The Mineral Potential of the Arabian Shield: A reassessment. In Proceedings of the IUGS/UNESCO Meeting on the “Base and Precious Metal Deposits in the Arabian Shield”, Jeddah, November (pp. 12-19). |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Linnaeite | 2.DA.05 | Co2+Co3+2S4 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Graphite | C |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Linnaeite | Co2+Co23+S4 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Co | Cobalt | |
| Co | ⓘ Linnaeite | Co2+Co23+S4 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Mining Annual Review (1985): 475.
Sabir H. (1979): Precambrian polymetallic sulfide deposits in Saudi Arabia and their metallogenic significance. In: Evolution and mineralization of the Arabian-Nubian shield. Proceedings from a symposyum convened by Ahmad M. S. Al-Shanti, Institute of Applied Geology, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia, Volume 2, 83-92.
Localities in this Region
- Medina Region
- Nuqrah deposit (Nuqrah Mine)
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