Coal Macerals | Petrographic Atlas | SIU

Southern Illinois University



Crelling's Petrographic Atlas of Coals and Carbons

College of Science


Frame ID:MA10
Sample ID: Elkhorn #3 seam Appalachian high volatile A bituminous coal, eastern Kentucky
Maceral Group: Vitrinite
Maceral Type: Telinite
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter: None
Important Features: Resinite cell fillings in vitrinite under blue-light illumination.
High Resolution Image (300 dpi)

Description: Same field of view as MA09 but in blue-light illumination. Note the yellow fluorescence of the resinite and the apparent lack of fluorescence of the vitrinite. Differences in fluorescence properties are commonly used to distinguish macerals from each other.