S-Class

S-Class (UAS )

Silicaceous

Silicaceous asteroids are mainly metallic iron and magnesium-silicates in composition. Quite common, these bodies are sometimes mined, but more often used as bases or refineries for other materials. Many times these are fragments from larger bodies, even to the point of bing little more than  piles of "rubble", loose agrgates of material that have been drawn back together by gravity after the initial object was broken up.