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Dahanib intrusion, Red Sea Governorate, Egypti
Regional Level Types
Dahanib intrusionComplex
Red Sea GovernorateGovernorate
EgyptCountry

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Latitude & Longitude (WGS84):
23° 46' 59'' North , 35° 10' 59'' East
Latitude & Longitude (decimal):
23.78333,35.18333
GeoHash:
G#: su1p29eez
GRN:
N16E23
Type:
Complex
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
443110
Long-form identifier:
mindat:1:2:443110:0
GUID (UUID V4):
0


The Alaskan-type rocks in the Dahanib area form a concentric zonation, where the cumulate dunites associated with banded chromitites are found in the core surrounded by harzburgites, wehrlites, gabbros, gabbronorites and hornblende gabbros/diorites at the rim. The Dahanib peridotites are sometimes cut by thin veins (~5 cm across) of amphiboles and pyroxenes, indicating parallel channels or conduits of the hydrous parental magmas. The peridotites are represented mainly by dunites with scarce wehrlites and harzburgites. The harzburgites are rare (< 5%) relative to other ultramafic rocks in the Dahanib complex. The investigated chromitites outcropped in the core of the Dahanib complex, and were hosted in cumulate dunites and/or clinopyroxenerich dunites that sometimes evolved to harzburgites. The chromitites occurred in the form of very thin seams (~3 cm width–100 cm length) or bands in the host dunites, forming repeated layers that were continuous.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


21 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 Diagram

Detailed Mineral List:

ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Aspidolite
Formula: NaMg3(AlSi3O10)(OH)2
ⓘ 'Calcium Amphibole Subgroup'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ 'Calcium Amphibole Subgroup var. Hornblende'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ 'Chrome-Spinel (of Dana)'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Penninite
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ 'Clinopyroxene Subgroup'
ⓘ Cubanite
Formula: CuFe2S3
ⓘ Edenite
Formula: NaCa2Mg5(Si7Al)O22(OH)2
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ Heazlewoodite
Formula: Ni3S2
ⓘ Horomanite
Formula: Fe6Ni3S8
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ 'Orthopyroxene Subgroup'
ⓘ Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Rutile
Formula: TiO2
ⓘ Samaniite
Formula: Cu2Fe5Ni2S8
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Spinel
Formula: MgAl2O4
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘHoromanite2.BB.Fe6Ni3S8
ⓘSamaniite2.BB.Cu2Fe5Ni2S8
ⓘHeazlewoodite2.BB.05Ni3S2
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘRutile4.DB.05TiO2
Group 9 - Silicates
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘMagnesio-hornblende9.DE.10◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘEdenite9.DE.15NaCa2Mg5(Si7Al)O22(OH)2
ⓘPargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘAspidolite9.EC.20NaMg3(AlSi3O10)(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Penninite9.EC.55Mg5Al(AlSi3O10)(OH)8
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Chlorite Group'-
ⓘ'Calcium Amphibole Subgroup
var. Hornblende'		-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Chrome-Spinel (of Dana)'-
ⓘ'Orthopyroxene Subgroup'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Olivine Group'-M2SiO4
ⓘ'Calcium Amphibole Subgroup'-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Hⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Hⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ Clinochlore var. PenniniteMg5Al(AlSi3O10)(OH)8
Hⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
Hⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
OOxygen
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Oⓘ EnstatiteMg2Si2O6
Oⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ RutileTiO2
Oⓘ SpinelMgAl2O4
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Clinochlore var. PenniniteMg5Al(AlSi3O10)(OH)8
Oⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
Oⓘ Olivine GroupM2SiO4
Oⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Fⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
NaSodium
Naⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Naⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Naⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
MgMagnesium
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Mgⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SpinelMgAl2O4
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Clinochlore var. PenniniteMg5Al(AlSi3O10)(OH)8
Mgⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Alⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Alⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ SpinelMgAl2O4
Alⓘ Clinochlore var. PenniniteMg5Al(AlSi3O10)(OH)8
Alⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
Alⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
SiSilicon
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Siⓘ EnstatiteMg2Si2O6
Siⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Siⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Clinochlore var. PenniniteMg5Al(AlSi3O10)(OH)8
Siⓘ AspidoliteNaMg3(AlSi3O10)(OH)2
Siⓘ Olivine GroupM2SiO4
Siⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ CubaniteCuFe2S3
Sⓘ HeazlewooditeNi3S2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ HoromaniteFe6Ni3S8
Sⓘ SamaniiteCu2Fe5Ni2S8
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Clⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Caⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Caⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caⓘ PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Calcium Amphibole SubgroupAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ CubaniteCuFe2S3
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyriteFeS2
Feⓘ HoromaniteFe6Ni3S8
Feⓘ SamaniiteCu2Fe5Ni2S8
NiNickel
Niⓘ HeazlewooditeNi3S2
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ HoromaniteFe6Ni3S8
Niⓘ SamaniiteCu2Fe5Ni2S8
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CubaniteCuFe2S3
Cuⓘ SamaniiteCu2Fe5Ni2S8

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
Arabian Plate
North Africa

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

[1]Khedr, Mohamed Zaki; Arai, Shoji; Morishita, Tomoaki (2020) Formation of banded chromitites and associated sulphides in the Neoproterozoic subarc deep-crustal magma inferred from the Alaskan-type complex, Egypt. Ore Geology Reviews, 120. doi:10.1016/j.oregeorev.2020.103410
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