M30

Frame ID: M30
Sample ID: Metallurgical Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Pyrite inclusion
High Resolution Image (300 dpi)

Description: The center of the frame is filled with pyrite that has survived the coking process. Note the finer mosaic size around the pyrite.