Natural products such as grass are not good to use on stone. Did you know that grass is acidic as it melts over time? Especially if wet. The color also dyes the stone. And, things such as wheat, dried grass, etc., will adhere to the stone in microscopic amounts, start degrading, and as they do, they will encourage mold, mildew, moss, other biological growth. Is nothing safe? Really...no, there is nothing safe to use on a stone except a non-ionic detergent and lots, lots, lots of water to rinse, using a white nylon bristle brush to clean. Andi ----- Original Message ----- From: <KidClerk@aol.com> To: <INPCRP-L@rootsweb.com> Sent: Monday, October 01, 2001 8:38 AM Subject: Re: [INPCRP] Chalk > I sometimes resort to grass or nearby weeds...if they are wet enough they > produce the same result as chalk and are at least a 'natural' product. I > don't know if this is any better than other products, but I agree to some > extent that at some point the information needs to be recorded before it is > lost forever... > > Kyle D. Conrad > > > ==== INPCRP Mailing List ==== > Blessed are the Elderly, for they remember what we will never know. > >