FA87
Frame ID: FA 87
Sample ID: 92075 (slide 387-16)
Magnification: 300 microns on long side
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel
Spinel texture. Fly ash from power plant burning high-sulfur, high volatile C Western Kentucky coal.