FA80
Frame ID: FA 80
Sample ID: 92306 (337-19)
Magnification: 330 microns on long side
Illuminator: Vertical
Objective: 32x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel
Layered spinels from power plant burning medium-sulfur, high volatile A bituminous Central Appalachian coal.