Marble incorporating iron core

Abstract

[Object] It is an object of the present invention to provide a marble having higher impact resistance than that of a marble of glass conventionally known, capable of being played by using a magnet and easily enhancing decorative properties. [Means for Settlement] A marble incorporating an iron core of a round ball is composed by covering the entire outer surface of an iron core with a jacket made of a synthetic resin.

1 . A marble incorporating an iron core and also having a jacket made of the synthetic resin for covering an entire outer surface of the iron core, wherein the jacket is shaped into a second round ball.  
   
   
       2 . A marble incorporating an iron according to  claim 1 , wherein the iron core is shaped into a first round ball.  
   
   
       3 . A marble incorporating an iron according to  claim 1 , wherein the above second round ball has the same weight as that of a glass sphere having the same diameter as that the second round ball.  
   
   
       4 . A marble incorporating an iron according to  claim 2 , wherein the above second round ball has the same weight as that of a glass sphere having the same diameter as that the second round ball.