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Stela Ridge, Tushka, Aswan Governorate, Egypti
| Regional Level Types | |
|---|---|
| Stela Ridge | Ridge |
| Tushka | - not defined - |
| Aswan Governorate | Governorate |
| Egypt | Country |
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Latitude & Longitude (WGS84):
24° North , 33° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Köppen climate type:
Agates.
"It is commonly reported in the Egyptological literature that there is another amethyst quarry dating to the Middle Kingdom, and also possibly the Old Kingdom and Roman period, at Stela Ridge near Gebel el-Asr, 70 km northwest of Abu Simbel. This, however, is incorrect as Stela Ridge produced only carnelian and other colored varieties of chalcedony (i.e., fibrous, microcrystalline, translucent to opaque quartz; also referred to as chalcedonic quartz). The error originated with R. Engelbach, who reported finding pieces of amethyst within a stone cairn of Middle Kingdom date and suggested that this gemstone may have been one of the products of the Stela Ridge quarry. If Engelbach’s identification of amethyst is correct, and it is not just the purple chalcedony at Stela Ridge that he saw, then it is likely that the amethyst was brought from the contemporaneous Wadi el-Hudi quarry [https://www.mindat.org/loc-207970.html]." [Harrell et al., 2006]
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Amethyst ? Formula: SiO2 References: |
| ⓘ Quartz var. Carnelian Formula: SiO2 References: |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz var. Amethyst ? | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Carnelian | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Carnelian | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Carnelian | SiO2 |
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Upper Egypt basinBasin
Arabian Plate
- Arabian-Nubian Shield
- East Desert TerraneVolcanic Arc
North Africa
- Sahara DesertDesert
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