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Crelling's Petrographic Atlas of Coals and Carbons

College of Science

FA85

fa85

Frame ID: FA 85

Sample ID: slide 385-1

Magnification: 270 microns on long side

Illuminator: Vertical

Objective: 50x oil

Polarizer: Out

Analyzer: Out

Retarder Plate: Out

Filter:

Important Features: Spinel

Row of five spinel spheres showing contrasts in texture.