Silver
Silver is a chemical element with symbol Ag (from the Latin "", derived from the Proto-Indo-European "h₂erǵ": "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.
Army Reserve Sustainment Command
Symbolism: The shield is adapted from the Army Materiel Command (AMC) and highlights the direct support to AMC and its subordinate elements. The colors signify the Command's missions. Bronze, buff and red indicate the sustainment/support role as well as the tie to the logistics community. Blue is a nod to the support mission for Defense Contract Management Agency as well as AMC. The four stars represent strength, experience, knowledge, and support. The arrow, flaring up from the base, represents the focus to bring the strength and teamwork of both officers and enlisted to one focus or point to support the mission of many.
Gold is emblematic of honor and high ideals. The colors and configuration of the disc refer to Army Materiel Command and support to its subordinate elements. The four stars represent the strength, experience, knowledge, and support. The compass points and rayed lines on the back disc signify a compass rose and highlight the worldwide mission of the Command. The arrow, flaring up from the base, represents the focus to bring the strength of both officers and enlisted to the one focus or point to support the mission of many. It also underscores the Command's motto which translates to "One Sustains Many." The green of the motto scroll points out the United States Army and its total readiness.