Bronze Wear, Primer Paint, and Paper Fiber
These particles are from a transformer oil sample. The red particle is a fragment of red primer paint. The
two "gold" colored particles are bronze (CuZnPb). There is a small copper particle to their right. The paper fiber is significantly
degraded as indicated by its low birefringence and its terminations.
Transmitted Oblique Off Crossed Circular Polarized Light and Reflected Darkfield Illumination
Significance in the Environment: