Graphites G07 | Petrographic Atlas | SIU

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Crelling's Petrographic Atlas of Coals and Carbons

College of Science

G07

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.