Graphites G20 | Petrographic Atlas | SIU

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Crelling's Petrographic Atlas of Coals and Carbons

College of Science

G20

g20

Frame ID: G20

Sample ID: Graphite

Magnification: As given

Illuminator: Vertical

Objective: 10x air

Polarizer: In

Analyzer: In

Retarder Plate: Out

Filter: None

Important Features: Baked graphite anode

High Res image (300 dpi)

Description: This frame shows a typical baked anode with petroleum coke fragments but with an excess of pore space due to lack of pitch. Note how the change in optical conditions enhances the identification of the various phases present.