Thanks again Sue, great to see a photo of a comparable weight (or pebble

) in Topaz.
However the more I study the photographs and compare them to the real thing the less I think it is topaz. The background is white all over. The top photo - where it looks a bit brownish , is because you are seeing through the whole weight to the base. The white layer on the top surface is stretched very thin and is almost transparent. It is much thicker on the sides and base - as per pictures 2,3,& 4 of my second lot. There is not a speck of topaz in the white areas. Yours shows topaz in the background colour quite clearly - mine has none of that.
might have to wait until I can bring it over on a visit to get a confirmation :usd: - pictures are no substitute for the real thing.
Thanks for all the input and interest
regards
Jackie