Hammered Silver/pewter & Marble/granite? Candlestick Holder

Gorgeous, Unique Hammered metal & stone Candlestick Holders. An Estate Sale find, These beauties were a very expensive Wedding Gift from a Mother of the Groom to the Bride. They are not marked or branded and they are fairly heavy. Quality made. I am not knowledgeable or familiar with the different materials Candlesticks are made from so I am not sure what these are made of. They are a Hammered Silver metal, with round stone type disc's. Actual items are Shown. Please See Pics as they are our best description. Thank you for your interest!