Sample ID: Unnamed Seam, high volatile B bituminous coal, Colorado
Maceral Group: Liptinite
Maceral Type: Sporinite
Magnification: As given
Objective: 50x oil
Retarder Plate: Out
Important Features: The sporinite macerals fluoresce a bright yellow under blue-light illumination.
High Resolution Image (300 dpi)
Description: Same field of view as MA24 under blue-light illumination. Note how the yellow fluorescing sporinite stands out. Thus, when petrographic analysis is done in blue light, the liptinite counts are always higher than in normal white-light analysis.