M37
Frame ID: M37
Sample ID: Metallurgical Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Pyrolytic carbon on vesicle walls
Description: The rims of the vesicles are covered with a thick coating of pyrolytic carbon. Note the distinctive extinction pattern of the pyrolytic carbon.