Scanned Cathodoluminescence of Vein Quartz 
Grasberg Igneous Complex,
Gunung Bijih (Ertsberg) District,
Irian Jaya, Indonesia

This work was done as part of a master's thesis at the University of Texas at Austin with Dr. Mark Cloos

Images
Scanned CL vs. Cold Cathode Luminescence
Concentric zoning
Microfractures
Dark luminescence
Different crystal sizes and orientations
Turbid zoning
Truncated zoning
Iron concentrations in quartz
 
Color images

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Sarah Penniston-Dorland
sarahpd@geol.umd.edu