Title: Stillwater Rocks Description: Rocks from the Stillwater Mine are brought to the USGS in Denver, Colorado, where they are ground before entering the plasma melter at Zybek Advanced Products.
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The USGS has created man-made moon dirt, or regolith, to help NASA prepare for upcoming moon explorations. Four tons of the simulant is expected to be made by this summer of 2009 and turned over to the scientific community involved in lunar exploration. Location: Denver, CO, USA Photographer: ,
U.S. Geological Survey
Usage: This image is public domain/of free use. Please refer to the USGS Copyright section for more details. Source: