Ferroaugite from
Fantale stratovolcano, East Shewa Zone, Oromia Region, Ethiopia

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Predictive Mineralogy

Classification
Locality type:	Stratovolcano
Species:	Augite var: Ferroaugite
Formula:	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Confirmation
Validity:	Believed Valid
Data
Mineral Data:	Click here to view Ferroaugite data
Locality Data:	Click here to view Fantale stratovolcano, East Shewa Zone, Oromia Region, Ethiopia
Data Identifiers
Mindat Occurrence Record ID:	1424991
Long-form Identifier:	1:3:1424991:6
GUID (UUID V4):	0
Nearest other occurrences of Ferroaugite

28.7km (17.9 miles)	ⓘ Koni Volcanic Centre, East Shewa Zone, Oromia Region, Ethiopia
References
Gibson, I.L. 1975. A review of the geology, petrology and geochemistry of the volcano Fantale. Bulletin Volcanologique, 38, 791-802. Macdonald, R. & Bailey, D.K. 1973. The chemistry of peralkaline oversaturated obsidians. United States Geological Survey, Professional Paper, 440-N-11. *Gibson, Ian Lethbridge (1970) A pantelleritic welded ash-flow tuff from the Ethiopian Rift Valley. Contributions to Mineralogy and Petrology, 28 (2) 89-111 doi:10.1007/bf00404992* Dickinson, D. R., & Gibson, I. L. (1972). Feldspar fractionation and anomalous Sr87/Sr86 ratios in a suite of peralkaline silicic rocks. Geological Society of America Bulletin, 83(1), 231-240. doi.org/10.1130/0016-7606(1972)83[231:FFAASR]2.0.CO GIRSON, I. L. (1972). The chemistry and petrogenesis of a suite of pantellerites from the Ethiopian Rift. Journal of Petrology, 13(1), 31-44. doi.org/10.1093/petrology/13.1.31 Woldegabriel, Giday, Aronson, James L., Walter, Robert C. (1990) Geology, geochronology, and rift basin development in the central sector of the Main Ethiopia Rift. Geological Society of America Bulletin, 102 (4) 439-458 doi:10.1130/0016-7606(1990)102<0439:ggarbd>2.3.co;2 Webster, J. D., Taylor, R. P., & Bean, C. (1993). Pre-eruptive melt composition and constraints on degassing of a water-rich pantellerite magma, Fantale volcano, Ethiopia. Contributions to Mineralogy and Petrology, 114(1), 53-62. doi.org/10.1007/BF00307865

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Ferroaugite from Fantale stratovolcano, East Shewa Zone, Oromia Region, Ethiopia

Ferroaugite from
Fantale stratovolcano, East Shewa Zone, Oromia Region, Ethiopia