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Jebel Dumbier, Nuba Mountains, North Kordofan State, Sudani
| Regional Level Types | |
|---|---|
| Jebel Dumbier | Dike |
| Nuba Mountains | - not defined - |
| North Kordofan State | State |
| Sudan | Country |
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Latitude & Longitude (WGS84):
12° 34' 44'' North , 30° 46' 9'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ar Rahad | 26,273 (2012) | 20.0km |
| Umm Ruwaba | 55,742 (2012) | 60.5km |
Carbonatite in the Nuba Mountains occurs essentially as dykes, varying from 10 cm to 1.5 m in thickness and 150 m in length with a sharp contact with their gneiss, schist and marble host rocks. Carbonatite varies in its color from colorless, yellowish white, greyish white to white. It is commonly hard and massive, particularly in the core of fresh dykes. Uncovered portions of the dykes are occasionally soft as a result of weathering. Carbonatite dykes are often accompanied with yellowish and greyish white to milky white quartz veins/dykes of about 20–30 cm thick, in addition to pinkish to greyish pink veins and lenses of fluorite of approximately 50 cm in thickness.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
5 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Feldspar Group' |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Strontianite Formula: SrCO3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 3 - Halides | |||
|---|---|---|---|
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Strontianite | 5.AB.15 | SrCO3 |
| Group 9 - Silicates | |||
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Strontianite | SrCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Strontianite | SrCO3 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | Aluminium | |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Sr | Strontium | |
| Sr | ⓘ Strontianite | SrCO3 |
Other Regions, Features and Areas containing this locality
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