FA93

Frame ID: FA93
Sample ID: 92584 (slide 406-19)
Magnification: 200 microns on long side
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel

Description: Spinel. Fly ash from power plant burning low-sulfur, high volatile B bituminous western US coal.