inlaysand
Inlaysand is a term that appears to be a misspelling or a non-standard term. It is possible the user intended to refer to "inlays" or "sand" as separate concepts, or perhaps a combination thereof.
Inlays are a form of decorative work where a material is set into a surface to create
Sand, on the other hand, is a granular material composed of finely divided rock and mineral particles.
If "inlaysand" refers to a specific material or technique not widely recognized by this name, further clarification