Biotite from
Zargat Naam Ridge, Red Sea Governorate, Egypt

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Predictive Mineralogy

Classification
Locality type:	Ridge
Species:	'Biotite' (not an IMA approved species)
Formula:	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Confirmation
Validity:	Believed Valid
Data
Mineral Data:	Click here to view Biotite data
Locality Data:	Click here to view Zargat Naam Ridge, Red Sea Governorate, Egypt
Data Identifiers
Mindat Occurrence Record ID:	1424164
Long-form Identifier:	1:3:1424164:0
GUID (UUID V4):	0
Nearest other occurrences of Biotite

33.5km (20.8 miles)	ⓘ Nikeiba, Red Sea Governorate, Egypt
39.1km (24.3 miles)	ⓘ Silaia Complex, Red Sea Governorate, Egypt
42.7km (26.5 miles)	ⓘ El Kahfa Complex, Red Sea Governorate, Egypt
55.9km (34.7 miles)	ⓘ Helgate prospect (Hilgit deposit), Um Samiuki deposit, Red Sea Governorate, Egypt
68.5km (42.6 miles)	ⓘ Wadi Khuda, Red Sea Governorate, Egypt
73.4km (45.6 miles)	ⓘ Abu Farayed Granite, Red Sea Governorate, Egypt
77.4km (48.1 miles)	ⓘ South Wadi Khuda, Red Sea Governorate, Egypt
80.9km (50.3 miles)	ⓘ Ghorab Atshan Intrusion, Red Sea Governorate, Egypt
82.6km (51.3 miles)	ⓘ Ghorab Raiyan Intrusion, Red Sea Governorate, Egypt
97.0km (60.3 miles)	ⓘ Emerald mines, Wadi Nugrus, Red Sea Governorate, Egypt
References
Abdel-Karim, A.M., Azzaz, S.A. & Abdel-Gaward, G.M. 1997. Petrography and geochemistry of the basement rocks of Zargat Na'Am-Hagar El-Fil area, South Eastern Desert, Egypt. Annals of the Geological Survey of Egypt, 20, 281-308. El Ramly, M.F., Budanov, V.I. & Hussein, A.A.A. 1971. The alkaline rocks of south-eastern Egypt. Geological Survey of Egypt, Paper, 53. Hashad, A. H., AH, H., & EL REEDY, M. W. M. (1979). Geochronology of the anorogenic alkalic rocks South Eastern Desert, Egypt. Annals of the Geological Survey of Egypt, 9, 81-101. Serencsits, C. M., CM, S., KA, F., & El Ramly, M. F. (1979). Alkaline ring complexes in Egypt: their ages and relationship to tectonic development of the Red Sea. Annals of the Geological Survey of Egypt, 9, 102-116. EL REEDY, M. W. (1985). Preliminary investigation on the distribution of uranium and thorium in some alkaline rocks of South Eastern Desert, Egypt. Annals of the Geological Survey of Egypt, 15, 115-121. Omar, G.I., Kohn, B.P., Lutz, T.M., Faul, H. (1987) The cooling history of Silurian to Cretaceous alkaline ring complexes, south Eastern Desert, Egypt, as revealed by fission-track analysis. Earth and Planetary Science Letters, 83 (1) 94-108 doi:10.1016/0012-821x(87)90054-9

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Biotite from Zargat Naam Ridge, Red Sea Governorate, Egypt

Biotite from
Zargat Naam Ridge, Red Sea Governorate, Egypt