P13
Frame ID: P13
Sample ID: Petroleum (Delayed) Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Granular coke
Description: Coke derived from a petroleum feedstock that shows a fine-grained granular texture. Note the layering indicated by different grain sizes.