FA40
Frame ID: FA40
Sample ID: 92421 (slide 369-20)
Magnification: 330 microns on long axis
Illuminator: Vertical
Objective: 32x oil
Polarizer: In
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Mixed field
Inertinite with minor coke from power plant burning a high volatile A to low volatile bituminous Northern Appalachian coal blend.