FA88
Frame ID: FA 88
Sample ID: slide 388-9
Magnification: 270 microns on long side
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel
Spinel in glass from bottom ash from power plant burning high volatile bituminous Central Appalachian coal.