Viewing page 5 of 70

February 11, 1977

Dr. W. Compston
Research School of Earth Sciences, ANU
P.O. Box 4
Canberra, A.C.T. 2600, Australia

Dear Bill,

Thank you for your letter of February 4. I am glad to learn that some of the samples I selected for Ross Taylor can be used in your project. It is difficult to judge which of them are likely to contain the most pyroxene, but I would recommend that you select from among the following: 3529-Y, 3529-Z, 3529-21, 3655A, 3682, 3529-41, 3529-42. For several of these I have additional material which I can supply if you need it.

On looking through my Allende material I find I have some separated pyroxene. This material was analyzed and described by Mason and Martin, EPSL Vol. 22, p. 141, 1974. I am enclosing a vial with 74 mg of this pyroxene (it has a moderate amount of admixed spinel). You are welcome to use this for your work if it is suitable; if not, please return it to me.

I don't plan to be at the Lunar Science Conference in March. However, if I can help you at all, please phone me at 202-381-5314.

With best regards.

Sincerely yours,

Brian Mason
Department of Mineral Sciences


Please note that the language and terminology used in this collection reflects the context and culture of the time of its creation, and may include culturally sensitive information. As an historical document, its contents may be at odds with contemporary views and terminology. The information within this collection does not reflect the views of the Smithsonian Institution, but is available in its original form to facilitate research. For questions or comments regarding sensitive content, access, and use related to this collection, please contact