Coasters, set of 6: five map, one Lighthouse with Holder - Beacon

Diatomaceous earth (DE) coasters.
This set consists of 4 partial sections of the Ocracoke map, one complete map, and one Ocracoke lighthouse. The coasters are cast using a putty made of pulverized diatomaceous earth (aka, “DE”). DE is fossilized diatom casings/exoskeletons.  It is food safe— in fact, it is often mixed in with stored grains, because the sharp edges of the tiny particles (harmless to us) is abrasive to insects, causing them to die of dehydration.  Although the coasters are lighter than igneous rock, they are surprisingly tough.  They absorb moisture and have a cork backing to protect furniture.