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

Fragments of limestone of unknown origin

9 limestone fragments of unknown origins.

Cubes and disks of marble, limestone, and granite