Deo Darrah, Kuran Wa Munjan District, Badakhshan, Afghanistani
| Regional Level Types | |
|---|---|
| Deo Darrah | Mine |
| Kuran Wa Munjan District | District |
| Badakhshan | Province |
| Afghanistan | Country |
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Latitude & Longitude (WGS84):
35° North , 70° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~62km
Type:
Köppen climate type:
Other/historical names associated with this locality:
Deo Darra Mts
Deo Darrah (a Persian word meaning "Valley of Jin") is an old tourmaline mine.
Blue beryl from this locality was originally described as vorobyevite, however, analysis has shown no noticeable Cs level (but with higher levels of Na and Ca) so it is essentially alkali-rich beryl. See http://www.mindat.org/mesg-11-310231.html and http://www.mindat.org/forum.php?read,105,351767,page=1. Analyses of rosettes of tabular aquamarine from "Kuran, district Wamunjan" (probably from Deo Darrah) reported in Weerth & Weiß (2016) show, apart from Na, increased levels of iron (~1.5 wt.% FeO) and cesium (~0.15 wt.% Cs2O), plus traces of scandium (~0,01 wt.% Sc2O3).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities5 valid minerals.
Detailed Mineral List:
| ✪ Beryl Formula: Be3Al2(Si6O18) Habit: Tabular hexagons Colour: blue to colourless Description: These were analysed by Federico Pezzotta in Milan and offered for sale by Rob Lavinsky:http://www.irocks.com/galleries/arkenstone-fine-minerals-vorobeyevite-rosterite-gilgit-pakistan. These are Cs rich beryls. |
| ⓘ Beryl var. Alkali-beryl Formula: Be3Al2(Si6O18) Habit: Tabular hexagons, shorted c-axis Colour: blue Description: Analysis in 2015 by Anatoly Kasatkin found required Cs was below detection limits. See: http://www.mindat.org/forum.php?read,9,351661,351661,quote=1
This means that there are no Cs beryls here, but there is alkali containing beryl. From the above message thread,"an email from Dr. Pezzotta and Rob Lavinsky from the 2012 finds in Deo Darrah... and
Pezzotta mentioned detecting the alkali metal elements Na and K, but not notable Cs in the
periphery of the crystals." The 2015 results debunk the vorobyevite claim but do not mention any other alkali metals. |
| ⓘ Beryl var. Aquamarine Formula: Be3Al2Si6O18 |
| ⓘ Elbaite Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ 'Feldspar Group' |
| ⓘ Hambergite Formula: Be2(BO3)(OH) |
| ⓘ 'Lepidolite' |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Rhodochrosite Formula: MnCO3 References: |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| Group 6 - Borates | |||
| ⓘ | Hambergite | 6.AB.05 | Be2(BO3)(OH) |
| Group 9 - Silicates | |||
| ⓘ | Beryl var. Alkali-beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | var. Aquamarine | 9.CJ.05 | Be3Al2Si6O18 |
| ⓘ | 9.CJ.05 | Be3Al2(Si6O18) | |
| ⓘ | Elbaite | 9.CK.05 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Lepidolite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Hambergite | Be2(BO3)(OH) |
| Li | Lithium | |
| Li | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Be | Beryllium | |
| Be | ⓘ Beryl var. Alkali-beryl | Be3Al2(Si6O18) |
| Be | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Hambergite | Be2(BO3)(OH) |
| B | Boron | |
| B | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Hambergite | Be2(BO3)(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Rhodochrosite | MnCO3 |
| O | Oxygen | |
| O | ⓘ Beryl var. Alkali-beryl | Be3Al2(Si6O18) |
| O | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Hambergite | Be2(BO3)(OH) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| Na | Sodium | |
| Na | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | Aluminium | |
| Al | ⓘ Beryl var. Alkali-beryl | Be3Al2(Si6O18) |
| Al | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Beryl var. Alkali-beryl | Be3Al2(Si6O18) |
| Si | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz | SiO2 |
| Mn | Manganese | |
| Mn | ⓘ Rhodochrosite | MnCO3 |
Localities in this Region
- Badakhshan
- Kuran Wa Munjan District
- Deo Darrah
- Kuran Wa Munjan District
Other Regions, Features and Areas containing this locality
AsiaContinent
- Hindukush Himalayan RegionGroup of Mountain Ranges
Eurasian PlateTectonic Plate
- Qiangtang
- South PamirVolcanic Arc
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References
Deo Darrah, Kuran Wa Munjan District, Badakhshan, Afghanistan