Unnamed opal showing, Dinde, Hwange District, Matabeleland North, Zimbabwei
| Regional Level Types | |
|---|---|
| Unnamed opal showing | - not defined - |
| Dinde | - not defined - |
| Hwange District | District |
| Matabeleland North | Province |
| Zimbabwe | Country |
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Latitude & Longitude (WGS84):
18° 26' 29'' South , 26° 43' 26'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dete | 2,993 (2013) | 24.6km |
| Hwange | 33,210 (2014) | 25.2km |
| Kamativi Mine | 1,575 (2012) | 37.8km |
A massive, strongly silicified ridge some 7km south of Dinde along the dirt road to RHA tungsten mine. The ridge is mainly composed of vein quartz and chalcedony, locally some pale agates can be observed. The latest formation is an almost pure white opal, variety cacholong or also called Mother of Pearl, forming globular aggregates on quartz crystals in narrow vugs.
The cacholong contains some 20 to 30ppm uranium resulting in a strong green fluorescence. As it is typical for this opal variety, it is porous and sticks to the tongue.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Cacholong' Formula: SiO2 · nH2O References: |
| ⓘ Opal Formula: SiO2 · nH2O References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Quartz var. Chalcedony Formula: SiO2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| Unclassified | |||
| ⓘ | 'Cacholong' | - | SiO2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Cacholong | SiO2 · nH2O |
| O | Oxygen | |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Cacholong | SiO2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Cacholong | SiO2 · nH2O |
Other Regions, Features and Areas containing this locality
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Unnamed opal showing, Dinde, Hwange District, Matabeleland North, Zimbabwe