This Gorara stone octagonal stone box is a little harder than soapstone so it does not break as easily. But gorara stone is a form of soapstone.
This is a vintage item that my father imported directly from India in the 1970s.
It measures 4" across and is 1.25" high.
I'm sorry to say that I do not know what the inlay material consists of.
This box was never used. I unwrapped it from it original packaging from the 1970s to take pictures.