ACMAL Update: Liz and Erico Out of the Office Next Week

Dear ACMAL Users,

I hope this email finds you well. I wanted to inform you that I will be out of town from July 20th – July 31st. Erico will also be out of the office for the Microscopy Conference (July 24-28th). 

During this period, if you encounter any issues or have any questions, please reach out to the following contacts:

  • For X-ray Facility questions, please contact
  • For Electron Optics Facility questions or sample preparation, please contact
  • For Scanning Probe Microscopy (AFM) & Surface Analysis (XPS) Facilities questions, please reach out to
  • For Confocal Imaging Facility questions, please contact
  • In case of an emergency, call public safety by dialing 911.

These individuals, as experts in their respective areas, will be able to assist you promptly. However, please note that for general inquiries or matters not specific to a particular area, it is best to contact me upon my return.

I have complete confidence in the ACMAL team’s abilities to handle any issues that may arise during my absence. Thank you for your understanding and cooperation. I will be sure to get back to you promptly upon my return on July 31st.

Wishing you all continued success with your research.

Best regards,



July 14, 2023, 11:14 a.m.

Unfortunately the service engineer couldn’t complete the repairs this week and will be returning next week.

July 12, 2023, 2:35 p.m.

Hitachi will be on site tomorrow to repair the issue. We hope to have the FESEM back online soon.

July 12, 2023, 10:50 a.m.

The FESEM has a vacuum issue and won’t be available for use until we can repair this. I have calls out to our service engineers and hope to know more soon.

Researchers Contribute to the Database on the Magnetic Properties of Meteorites

Cover of Icarus

Aleksey Smirnov (GMES) and Katie Bristol ’20 (M.S. Geophysics), currently a Ph.D. student at the University of Florida, collaborated as co-authors on a research paper published in Icarus, a prestigious journal renowned in the field of planetary science.

The paper is titled “Magnetic characterization of the Daule chondrite (Ecuador’s first meteorite fall): The case of elusive tetrataenite?”

The study also involved researchers hailing from Ecuador, Iceland and Norway.

Two representative samples of bulk Daule material were analyzed using an FEI Philips XL 40 Environmental Scanning Electron Microscope (ESEM) at the Applied Chemical and Morphological Analysis Laboratory at Michigan Technological University (MTU).

  • The morphology and texture of mineral grains were examined using backscattered electron (BSE) imaging.
  • The elemental composition of the material was determined through energy-dispersive x-ray spectroscopy (EDS) using a ∼ 15 kV accelerating voltage.
  • Basic elemental mapping was performed.

The new data contribute to the database on the magnetic properties of meteorites, in which meteorites of Daule’s type are underrepresented.

K.E. Bristol, A.V. Smirnov, E.J. Piispa, M.R. Ramirez Navas, A. Kosterov, E.V. Kulakov, Magnetic characterization of the Daule chondrite (Ecuador’s first meteorite fall): The case of elusive tetrataenite?, Icarus, Volume 404, 2023.