FA78
Frame ID: FA 78
Sample ID: 92029 (slide 319-28)
Magnification: 330 microns on long side
Illuminator: Vertical
Objective: 32x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel
Spinel sphere with included spinel and glass spheres. Power plant burning medium-sulfur, high volatile A bituminous Eastern Kentucky coal.