EGU Blogs

Photo of the Week #49

This week’s photo is from my personal research and shows a precipitate that I generated in the lab one day of AgI (silver iodide) for analysis of 129I by accelerator mass spectrometry.

I felt though that I wanted to verify the purity of the AgI so I quickly threw in on our scanning electron microscope to a) check the chemistry and b) take a picture. The image below shows an amalgam of AgI crystals with a scale of 20 microns at 600 times magnification.


By the way, to any fellow Canadians reading this post. Please go vote today and be a part of our democracy!!

Matt Herod is a Ph.D Candidate in the Department of Earth Sciences at the University of Ottawa in Ontario, Canada. His research focuses on the geochemistry of iodine and the radioactive isotope iodine-129. His work involves characterizing the cycle and sources of 129I in the Canadian Arctic and applying this to long term radioactive waste disposal and the effect of Fukushima fallout. His project includes field work and lab work at the André E. Lalonde 3MV AMS Laboratory. Matt blogs about any topic in geology that interests him, and attempts to make these topics understandable to everyone. Tweets as @GeoHerod.