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Last Updated: Aug 01, 2025, 11:19 AM
Frame ID: FA80
Sample ID: 92306 (slide 337-19)
Magnification: 330 microns on long side
Illuminator: Vertical
Objective: 32x oil
Polarizer: Out
Analyzer: Out
Retarder Plate: Out
Filter:
Important Features: Spinel
Description: Layered spinels from power plant burning medium-sulfur, high volatile A bituminous Central Appalachian coal.