FA58
Frame ID: FA 58
Sample ID: 92371 (slide 386-13)
Magnification: 270 microns on long side
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Large glass sphere
Portion of wall of large glassy sphere. Note spinel (to be illustrated in slides ) included in glass. Unspecified coal source.