12 Baylis Mews, Amyand Park Road, Twickenham, Middlesex, TW1 3HQ, United Kingdom.

Tel: +44 (0)20 8891 6600
Fax: +44 (0)20 8891 6599
Email: info@minersoc.org

Registered Charity No. 233706
VAT Reg. No. GB 238 7676 17

Photo Gallery

Click on a photo to enlarge and for more information.

Smectite, variety hectorite
'Images of Clay'

EMU Notes in Mineralogy - volume 14

Minerals at the Nanoscale
(F. Nieto and K.J.T. Livi, editors)  

Chapter 2. Energy dispersive X-ray microanalysis by TEM applied
to extraterrestrial materials

Energy dispersive X-ray microanalysis of thin specimens in a transmission electron microscope is a valuable method for investigating the chemistry of the nano-scale structure of rocks and minerals. This chapter summarizes first the key elements of this technique, including X-ray generation from the specimen, the detection chain and the quantification of spectra collected. The second part of the chapter is devoted to applications of the technique to extraterrestrial objects (Martian meteorites, cometary dust, primitive chondrites). Through examples, the different EDX working modes are illustrated (spot analysis, line profile, element map). Beam-damage issues are also discussed. 

Go to the table of contents for this book

Go to the Mineralogical Society's online shop to buy a copy of the book from which this chapter is taken