Sedimentary

Sandstone fragments with alveolar deterioration

Samples for removing paint a) on limestone made by Kerry Johnson; b) samples on on wood for removing paint layers made by CSMyers; plaster substrate and wood substrate for removing samples.

Sandstone fragments and analysis samples for Bethesda Terrace

Fragment of a gravemarker with tooling marks

12 sandstone coupons with grouting

Sandstone fragment of an Ionic volute with gypsum crust

Microsamples and salt tests from Dakota Sandstone