P07
Frame ID: P07
Sample ID: Petroleum (Delayed) Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Coarse mesophase coke
Description: Coke derived from a petroleum feedstock that is transitional into a mesophase mixed-layer type structure.