M10
Frame ID: M10
Sample ID: Metallurgical Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: (80 daylight)
Important Features: Coarse circular anisotropic coke texture
Description: The purple and green speckled area is cell wall material. The dark isotropic fragment with cell structure at the lower center is a fusinite maceral that appears unaltered by the coking process. In the ASTM/U.S. Steel Carbon Form Classification this sample falls into the Circular Anisotropic 1.5-2.0 µ group. This type of carbon form is typical of medium volatile bituminous coals of V type 11.