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Beneficiation of Stillwater Complex Rock for the Production of Lunar SimulantsThe availability of pure, high calcium plagioclase would be a significant asset in any attempt to manufacture high-quality lunar simulants. A suitable plagioclase product can be obtained from materials obtained from the Stillwater Complex of Montana. The access, geology, petrology, and mineralogy of the relevant rocks and the mill tailings are described here. This study demonstrates successful plagioclase recovery from mill tailings produced by the Stillwater Mine Company. Hydrogen peroxide was used to remove carboxymethyl cellulose from the tailing. The characteristics of the plagioclase products are shown and locked grains are identified as a limit to achievable purity. Based on the experimental results, flowsheets were developed showing how these resources could be processed and made into 'separates' of (1) high calcium plagioclase and (2) orthopyroxene/clinopyroxene with the thought that they would be combined later to make simulant.
Document ID
20140003187
Document Type
Technical Memorandum (TM)
Authors
Rickman, D. L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Young, C. (Montana Tech of the Univ. of Montana Butte, MT, United States)
Stoeser, D. (Geological Survey Denver, CO, United States)
Edmunson, J. (Jacobs Technology, Inc. Huntsville, AL, United States)
Date Acquired
April 18, 2014
Publication Date
March 1, 2014
Subject Category
Lunar and Planetary Science and Exploration
Report/Patent Number
M-1378
NASA/TM-2014-217502
Distribution Limits
Public
Copyright
Public Use Permitted.

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