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  • John ashurst conservation of building and decorative

    Conservation of Building and Decorative Stone. Editors. John Ashurst D.Arch, RIBA, EASA (Hon) Formerly Principal Architect, Research and Technical Advisory Service ...

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  • Journal of weekly news and commentaries about rocks

    lc John Betts Fine Minerals, New York, NY Dealers of Fine Minerals and Natural Crystal Clusters since 1989. Journal of weekly news and commentaries about rocks and ...

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  • Minerals List David K. Joyce Minerals

    All prices in Canadian dollars. For payment in US$, deduct 19% or multiply by 0.81. Click on any of the following thumbnails to view a larger image of the specimen.

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