A sand cast pendant of a small Catholic reliquary with a gold plated ball chain.
Silver tarnishes over time. This is a natural process that occurs to the metal and in some cases can add to the character of the piece. However, polishing silver back to its former glory is very easy.
When polishing your piece, use a small lint-free piece of cloth or an ear bud and clean in back and forth motions, not circular ones as this can scratch the surface. If that doesn't work, dishwashing liquid and warm water in addition to the polish should do the trick.