G07

Frame ID: G07
Sample ID: Graphite
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Filler coke in graphite crucible
High Resolution Image (300 dpi)

Description: The large fragment in the center of the frame is needle coke as a filler phase set in a coarse- grained binder phase. This sample is typical of graphite used in laboratory crucibles.