Planetary Simulant Database
Free Resource for Regolith Simulant Information
|Bulk density||1.5-2.2 g/cm3||Friction Angle||41.4-29.8°|
MLS 1/1P Minnesota Lunar Simulant
Simulant Name: MLS-1/1P
Current Status: Not Available
Developed By: University of Minnesota
Available From: N/A
Publications: Weiblen, P. W., and K. Gordon (1988), Characteristics of a Simulant for Lunar Surface Materials. Second Conference on Lunar Bases and Space Activities of the 21st Century, p.254.
MLS-1 and -1P were developed as general use, high-Ti mare simulants. They were derived from a basaltic sill in an abandoned quarry in Duluth, MN. The MLS-1 version is glass-free, but the -1P variant was produced by passing a portion of the raw material through a plasma furnace to form glass. The chemistry of MLS-1 compared favorably to Apollo 11 soil 10084.
The same group also produced the MLS-2 highlands simulant. None of the MLS simulants seem to be currently available.
Photographs of (left to right) MLS-1 bulk, MLS-1 coarse fraction, and MLS-1P glass. From Johnson et al. 2013: