Clay Chenistry Aug 6, 2019 4:07:40 GMT -6 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by tileman2 on Aug 6, 2019 4:07:40 GMT -6 This one on clay memory: ceramicartsnetwork.org/ceramics-monthly/ceramic-supplies/ceramic-raw-materials/techno-file-clay-memory/Tom