Tube Agate Pendant, Triangular Cabochon, 925 Sterling SilverI love this new material which I haven't seen before in Jewellery, and they are very photogenic ! I chose the most interesting pieces and they have been nicely set with a strong stepped bezel and open back in 925 Sterling Silver. As the Silica Gel was forming, which would normally become Chalcedony Agate, extremely thin mineral rods grew inside the before the gel had solidified as Chalcedony, leaving these long thin crystals as inclusions though