Q24
Frame ID: Q24
Sample ID: Quinoline Insolubles
Magnification: As given
Illuminator: Vertical
Objective: 125x oil
Polarizer: In
Analyzer: Out
Retarder Plate: Out
Filter: None
Important Features: QI concentrate
Description: A concentrate of normal QI (finer material) and a carryover char and coke with a large coal particle at top left which has been partially dissolved by the quinoline solvent.