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.