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A rock, semivitrified clay or shale, somewhat resembling jasper, composed of mullite and other high-temperature silicate and oxide minerals.
Formed due to combustion metamorphism (e.g., burning coal seams and dumps, mine fires).
Classification of Porcelanite
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Other Names for Porcelanite
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References for Porcelanite
Ernst, W.G. & S.E. Calvert (1969), An experimental study of the recrystallization of porcelanite and its bearing on the origin of some bedded cherts: Amer. Jour. Sci.: 267A: 114-133.
Internet Links for Porcelanite
Localities for Porcelanite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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New Locality Added: Morito meteorite, Mun. de Hidalgo del Parral, Chihuahua, MexicoFrom Lon Clay Hill, 21st Dec 2014 01:05:20