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Usakos Tourmaline Mine, Usakos, Karibib, Erongo Region, Namibiai
Regional Level Types
Usakos Tourmaline MineMine
Usakos- not defined -
Karibib- not defined -
Erongo RegionRegion
NamibiaCountry

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Key
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Latitude & Longitude (WGS84): 22° 0' 26'' South , 15° 36' 55'' East
Latitude & Longitude (decimal): -22.00747,15.61530
GeoHash:G#: kk54g3dtn
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate


Owned by D. Mansfield.
600 x 350 m pegmatite.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Ernst A. Schnaitmann
'Apatite'
Reference: Ernst A. Schnaitmann
'Lepidolite'
Reference: Ernst A. Schnaitmann; Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
Montebrasite
Formula: LiAl(PO4)(OH)
Reference: Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
Quartz
Formula: SiO2
Reference: Ernst A. Schnaitmann; Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: http://www.mme.gov.na/mines/minesandproducts.htm; Ashworth, L. (2014). Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation (Doctoral dissertation, Faculty of Science, University of the Witwatersrand).

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Montebrasite8.BB.05LiAl(PO4)(OH)
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Unclassified Minerals, Rocks, etc.
'Apatite'-
Lepidolite-
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Montebrasite41.5.8.2LiAl(PO4)(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
var: Cleavelandite-Na(AlSi3O8)
'Apatite'-
'Lepidolite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H MontebrasiteLiAl(PO4)(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li MontebrasiteLiAl(PO4)(OH)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O AlbiteNa(AlSi3O8)
O Albite (var: Cleavelandite)Na(AlSi3O8)
O MontebrasiteLiAl(PO4)(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al MontebrasiteLiAl(PO4)(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
PPhosphorus
P MontebrasiteLiAl(PO4)(OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Ediacaran - Cryogenian
541 - 720 Ma



ID: 3306663

Age: Neoproterozoic (541 - 720 Ma)

Lithology: Sedimentary and volcaniclastic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Neoproterozoic
541 - 1000 Ma



ID: 3186935
Neoproterozoic sedimentary rocks

Age: Neoproterozoic (541 - 1000 Ma)

Stratigraphic Name: Damara Supergroup

Lithology: Metasedimentary/metavolcanic schist

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ashworth, L. (2014): Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post-collisional mineralisation. Doctoral dissertation, Faculty of Science, University of the Witwatersrand, xx pp.


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