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Semna mine, Bir Semna, Eastern Desert, Red Sea, Egypti
Regional Level Types
Semna mineMine
Bir Semna- not defined -
Eastern DesertDesert
Red SeaGovernorate
EgyptCountry

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Key
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Latitude & Longitude (WGS84): 26° 26' 43'' North , 33° 35' 31'' East
Latitude & Longitude (decimal): 26.44528,33.59222
GeoHash:G#: ssxykqjng
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Safaga32,944 (2017)48.2km


Gold deposit.
Gold-bearing quartz veins, confined to shear zones close to the boundaries of small granitoid stocks.

Located in the central Eastern Desert.

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


16 valid minerals.

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: Ore Geology Reviews 34 (2008) 580-596.
Arsenopyrite
Formula: FeAsS
Reference: Ore Geology Reviews 34 (2008) 580-596.
Calcite
Formula: CaCO3
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Chalcopyrite
Formula: CuFeS2
Reference: Ore Geology Reviews 34 (2008) 580-596.
'Chlorite Group'
Reference: Ore Geology Reviews 34 (2008) 580-596.
Covellite
Formula: CuS
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
'Electrum'
Formula: (Au, Ag)
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Galena
Formula: PbS
Reference: Ore Geology Reviews 34 (2008) 580-596.
Goethite
Formula: α-Fe3+O(OH)
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Gold
Formula: Au
Reference: Ore Geology Reviews 34 (2008) 580-596.
Hematite
Formula: Fe2O3
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Ore Geology Reviews 34 (2008) 580-596.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ore Geology Reviews 34 (2008) 580-596.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ore Geology Reviews 34 (2008) 580-596.
Pyrite
Formula: FeS2
Reference: Ore Geology Reviews 34 (2008) 580-596.
Pyrrhotite
Formula: Fe7S8
Reference: Zoheir, B., Akawy, A., and Hassan, I. (2008): Ore Geology Reviews 34, 580-596.
Quartz
Formula: SiO2
Reference: Ore Geology Reviews 34 (2008) 580-596.
Sphalerite
Formula: ZnS
Reference: Ore Geology Reviews 34 (2008) 580-596.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Electrum'1.AA.05(Au, Ag)
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
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
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
'Electrum'-(Au, Ag)
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H KaoliniteAl2(Si2O5)(OH)4
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H AluniteKAl3(SO4)2(OH)6
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
H Limonite(Fe,O,OH,H2O)
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O KaoliniteAl2(Si2O5)(OH)4
O QuartzSiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O AluniteKAl3(SO4)2(OH)6
O CalciteCaCO3
O Goethiteα-Fe3+O(OH)
O MalachiteCu2(CO3)(OH)2
O Limonite(Fe,O,OH,H2O)
O HematiteFe2O3
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al AluniteKAl3(SO4)2(OH)6
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si KaoliniteAl2(Si2O5)(OH)4
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
S ChalcopyriteCuFeS2
S ArsenopyriteFeAsS
S GalenaPbS
S SphaleriteZnS
S AluniteKAl3(SO4)2(OH)6
S PyrrhotiteFe7S8
S CovelliteCuS
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K AluniteKAl3(SO4)2(OH)6
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe ArsenopyriteFeAsS
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe PyrrhotiteFe7S8
Fe HematiteFe2O3
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
Cu CovelliteCuS
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag Electrum(Au, Ag)
AuGold
Au GoldAu
Au Electrum(Au, Ag)
PbLead
Pb GalenaPbS

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: 3306424

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]

Stenian - Ectasian
1000 - 1400 Ma



ID: 3184455
Mesoproterozoic intrusive rocks

Age: Mesoproterozoic (1000 - 1400 Ma)

Lithology: Intrusive igneous rocks

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)
Zoheir, B., Akawy, A., and Hassan, I. (2008) Role of fluid mixing and wallrock sulfidation in gold mineralization at the Semna mine area, central Eastern Desert of Egypt: Evidence from hydrothermal alteration, fluid inclusions and stable isotope data. Ore Geology Reviews, 34, 580-596.


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