FA69

Frame ID: FA69
Sample ID: slide 388-16
Magnification: 270 microns on long side
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Mullite

Description: Mullite from bottom ash from power plant burning high volatile bituminous Central Appalachian coal.