FA43
Frame ID: FA43
Sample ID: 91908 (slide 303-5)
Magnification: 330 microns on long axis
Illuminator: Vertical
Objective: 32x oil
Polarizer: In
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Partially burned coal
Partially burned vitrinite (right center) showing devolatilization features. Note lower reflectance than surrounding coke particles.