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Crelling's Petrographic Atlas of Coals and Carbons

College of Science

FA5

fa5

Frame ID: FA5

Sample ID: 92537 (slide 378-11

Magnification:  270 microns on long axis

Illuminator: Vertical

Objective: 50x oil

Polarizer: In

Analyzer: Out

Retarder Plate: Out

Filter:

Important Features: Isotropic coke

Isotropic coke, with inertinite at bottom of frame, from combustion of high volatile A bituminous central Eastern Kentucky coal.