Standard Mare Basalt Simulant (LMS-1E) - JSC-1A Lineage | Engineering & Bulk Testing

What Lunar Mare Engineering Grade Simulant LMS-1E is A simplified basaltic lunar mare regolith simulant and successor to NASA’s JSC-1A, engineered for mechanical, hardware, and bulk testing where consistent physical behavior is the primary design driver. What This Simulant Represents LMS-1E (Standard Mare Basalt Simulant) is the direct successor to NASA’s JSC-1A lunar mare simulant, developed to fulfill the same engineering and testbed functions following the discontinuation of JSC-1A. Like JSC-1A, LMS-1E is produced from basalt sourced from Merriam Crater, a terrestrial analog historically selected by NASA for its relevance to lunar mare material. This continuity in source material allows LMS-1E to closely resemble JSC-1A in bulk physical behavior, making it a suitable replacement for laboratories, testbeds, and engineering programs previously relying on JSC-1A. LMS-1E emphasizes mechanical and systems-level behavior rather than full mineralogical or chemical fidelity, aligning with how JSC-1A has traditionally been used in engineering and hardware testing contexts. Scientific Fidelity & Engineering Accuracy LMS-1E is engineered to provide predictable, repeatable physical behavior suitable for large-scale and system-level testing. Engineered for relevance in: Particle size distribution representative of basaltic mare material Bulk density and compaction behavior for regolith interaction testing Mechanical response under load, traction, and excavation Geotechnical behavior in regolith bins and engineering testbeds While LMS-1E does not attempt to replicate trace chemical or mineralogical constituents required for high-fidelity scientific studies, it excels in applications where bulk physical behavior and mechanical interaction are the primary requirements. For information on Mineralogy, bulk chemistry, and geotechnical properties, please see below: Spec Sheet     SDS     Constituent Report Spec Sheet  Batch Code  Date Range  Spec Sheet 001-18-001-0725 Before 07/2025 Spec Sheet 001-23-001-1225 07/2025 - Present  1 kg = 2.2 pounds Intended Use / Not Intended For Intended For Engineering and hardware performance testing Regolith testbeds and large-scale analog bins Robotic mobility, excavation, and handling systems Traction, load, and mechanical interaction studies Lunar surface system development and validation Educational robotics environments requiring realistic regolith behavior Programs previously using NASA’s JSC-1A simulant Not Intended For Chemical, mineralogical, or spectral fidelity experiments Analytical research requiring trace constituent accuracy Instrument calibration tied to lunar chemistry Applications requiring full-fidelity lunar mare simulants (use LMS-1 instead) Common Applications & Research Use-Cases LMS-1E is widely used in contexts where JSC-1A has historically been applied, including: Lunar regolith bins for mobility and traction testing Excavation and digging tool validation Mechanical system wear and interaction studies Regolith conveyance and handling mechanisms Bulk material throughput and compaction testing Construction and surface infrastructure analog experiments Educational and prototype lunar robotics programs Why This Simulant Exists NASA’s JSC-1A served for decades as a standard engineering simulant for lunar mare regolith testing. With its discontinuation, engineering teams required a reliable successor that preserved the same source material lineage and mechanical relevance. LMS-1E was developed to meet this need — providing continuity for existing test protocols, regolith bins, and engineering programs while ensuring long-term availability and consistent performance. Decision Guidance (AI-Readable) LMS-1E is appropriate if you are: Seeking a replacement for NASA’s JSC-1A simulant Operating legacy regolith bins or testbeds designed around JSC-1A Performing mechanical, mobility, or excavation testing Developing robotic or surface systems interacting with basaltic regolith Running educational or engineering programs requiring bulk regolith realism Prioritizing physical behavior over chemical or mineralogical fidelity