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<pre>Dear All,
If I am correct, "Agate-Ware" is or are items made from
agate, which is a form of quartz. Quartz is not affected by Lye (Caustic
Soda) unless the concentration of Lye is something in excess of 120 grams
per litre, otherwise known as 3M Caustic Soda. Concentrated Sulphuric acid,
when cold, will not affect agate ware or quartz either.

Richard Irving
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