I knew that was coming. They vary. Some are granite and resemble a more recent monument even though the date is c.1910. Some are the off-white stone tall in shape and difficult to read unless the light is just right to create shadows of the letters. The gray granite markers mostly have a mossy mildewed appearance. The off-white markers are speckled with no telling what. Then there is one in Arkansas that is probably granite but not faced off as smooth as most markers. Gale Gorman Houston On May 3, 2012, at 2:14 PM, W David Samuelsen wrote: what kind of stones are they? Cleaning is not same for every stone. Most requires only water. David Samuelsen On 5/3/2012 12:33 PM, Gale Gorman wrote: > > On May 3, 2012, at 1:13 PM, Kathie Harrison wrote: > > Tom, I started that list and it was hugely subscribed to and I ran it > for the first couple years and had alot of bickering on it with the > pros and cons of cleaning tombstones... > -----------snip---------- > > I have a few grave markers I need to visit and clean. What's the best method or solution? > > Gale Gorman > Houston >