Alabaster sought

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I am currently researching the surface effects of laser cleaning
when applied to alabaster. At present I have fresh samples of
alabaster, but I'm looking for dusty/dirty/soiled samples,
preferably of various colouring (pink, white with iron oxide and
black) if anyone has any to donate. The pieces need to be small
enough to post/collect (if in U.K) and carry out analysis using SEM.
They will also be at risk from possible damage. Knowledge of the
type/name of the alabaster is also needed. If anyone could aid my
research I would be most appreciative.

Sarah Jane Short


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                  Conservation DistList Instance 22:40
                 Distributed: Sunday, January 18, 2009
                       Message Id: cdl-22-40-014
                                  ***