It is a particularly plastic clay, which is used to facilitate the final application of gold or similar gold leaf.
The product has a laminar structure which, under the pressure of an agate stone, is arranged parallel to the surface thus allowing a good polishing. The Armenian bole has no glue, for its application it is necessary to create a solution of rabbit glue (1 liter of 10% glue on about 300 ml of Armenian bolus). The mixture must be spread in a thin layer on the support to be gilded.