Nilaw pegmatites, Nilaw-Kolum pegmatite field, Nuristan, Afghanistani
| Regional Level Types | |
|---|---|
| Nilaw pegmatites | Pegmatite Field |
| Nilaw-Kolum pegmatite field | Pegmatite Field |
| Nuristan | Province |
| Afghanistan | Country |
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Latitude & Longitude (WGS84):
35° 14' 12'' North , 70° 17' 21'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
226200
Long-form identifier:
mindat:1:2:226200:3
GUID (UUID V4):
07637339-51d6-428a-a896-2973ae9694d1
Be-Ta-Li-Sn-Nb-Cs-Rb-rich pegmatite dykes, hosted in Early Cretaceous diorite and gabbro.
Diorite, gabbro and granite intrusions with related pegmatites are intruded between gneiss, schist, quartzite, marble and amphibolite of Proterozoic protolits.
The country rocks are penetrated by lots of steeply dipping dikes of granite and pegmatite. The granites grade into pegmatites, which contain biotite, muscovite, black tourmaline and rare beryl.
As the veins enter the diorite their form, thickness and orientation becomes very regular. Horizontal or dipping at low angles the veins may be traced over kilometers. The thicknesses lie between dm and 40 m, but commonly between 1 and 20 m.
Usually a characteristic feature of the pegmatites is a sporadic occurrence of beryl; but in the area NW of Nilaw spodumene and lepidolite occur with beryl lacking.
(Gerhard Fuchs et al.)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
7 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:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) |
| ⓘ Beryl Formula: Be3Al2(Si6O18) |
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ 'Lepidolite' |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Pollucite Formula: (Cs,Na)2(Al2Si4O12) · 2H2O |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Spodumene Formula: LiAlSi2O6 |
| ⓘ Spodumene var. Kunzite Formula: LiAlSi2O6 |
| ⓘ 'Tantalite' Formula: (Mn,Fe)(Ta,Nb)2O6 |
| ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Group 9 - Silicates | |||
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Pollucite | 9.GB.05 | (Cs,Na)2(Al2Si4O12) · 2H2O |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| ⓘ | var. Kunzite | 9.DA.30 | LiAlSi2O6 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Lepidolite' | - | |
| ⓘ | 'Tantalite' | - | (Mn,Fe)(Ta,Nb)2O6 |
| ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | Lithium | |
| Li | ⓘ Spodumene var. Kunzite | LiAlSi2O6 |
| Li | ⓘ Spodumene | LiAlSi2O6 |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | Oxygen | |
| O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | ⓘ Spodumene var. Kunzite | LiAlSi2O6 |
| O | ⓘ Spodumene | LiAlSi2O6 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | Aluminium | |
| Al | ⓘ Spodumene var. Kunzite | LiAlSi2O6 |
| Al | ⓘ Spodumene | LiAlSi2O6 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Spodumene var. Kunzite | LiAlSi2O6 |
| Si | ⓘ Spodumene | LiAlSi2O6 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| Mn | Manganese | |
| Mn | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Fe | Iron | |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Nb | Niobium | |
| Nb | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Cs | Caesium | |
| Cs | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Ta | Tantalum | |
| Ta | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
Other Regions, Features and Areas containing this locality
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References
Nilaw pegmatites, Nilaw-Kolum pegmatite field, Nuristan, Afghanistan