This item contains the following correspondence:

1. 7 May 1981. Handwritten letter to Johnson discussing possible mineral specimen exchange and an article about micromount mineral collecting in Australia. One page.
   
   
2. 13 May 1981. Handwritten list of specimens under heading 'from Michel Marniquet. May 13, 1981'. One page.
   
   
3. 15 June 1981. Handwritten list of minerals under heading 'To Michel Marniquet. Sent June 15 '81'. One page.
   
   
4. 6 August 1981. Handwritten letter to Johnson discussing micromounted mineral specimen exchange. The letter is written on the reverse side of a thirteen page computer printout listing mineral specimens Marniquet had available for trade. Thirteen pages (one double-sided).
   
   

Australian locations mentioned in this correspondence include Reaphook Hill (SA), Broken Hill (NSW), Moculta (SA), and Olivers Quarry (SA).

Individuals mentioned in this correspondence include William Henderson and Neal Yedlin.