cleaning mineral deposits out of a possible valuable vase
December 19, 2006 10:39 AM Subscribe
My mother needs to clean what appears to be hard water mineral deposits from an old Van Briggle vase without damaging it. Vinegar?
Mom recently found out that a vase she's had on the shelf for 20ish years is a Van Briggle
. After a giddy afternoon hopped up on Antiques Roadshow, she's convinced it's worth some money and would like to clean it up a bit.
The outside is in great condition, but whoever owned it before Ma had some extremely hard water problems. Or used it for an oatmeal bowl =P. Something that left huge rough patches of rock hard calcium(?) or other minerals all over the inside.
A mediocre picture is here
. I think it shows what I'm talking about (Mom's getting into digital photography kinda late) but if a better pic is needed I can get her to take one with a tripod.
Any pottery heads out there have suggestions for the cleanup? It has the distinctive blue glaze that Van Briggle is famous for, and she's afraid of damaging it with vinegar or the more commercial calcium/lime removers, and that's all Google brings up. Thanks, all.