Curiosity discovers unidentified, metallic object on Mars

[Tenet Nosce]

Silica deposits (detected in 2007 and 2010) could be an explanation: http://www.newscientist.com/blogs/shorts...could.html

This says:

The deposits contain the mineral hydrated silica, according to observations made by a spectrometer on NASA's Mars Reconnaissance Orbiter. The mineral is transported and then concentrated by hot water or steam, suggesting the deposits were laid down in what was once a hydrothermal environment.

Groundwater may have been heated by magma from the erupting volcano and vented to the surface as steam, says John Mustard of Brown University in Rhode Island, a member of the team that identified the mineral.

Were any of these shiny objects also located near a volcano or other geothermal activity?