its a Carnelian that is artificially Etched or Decorated.

that's all to it.

if you take these to the Himalayas it will be considered to be part of Chung dzi family. in the western world it will be called Etched Carnelian, in China or Burma or Thailand something else etc.

its like calling a Apple, pomme,mela,Apfel, or whatever..

no need to go in a deep sense.