This piece of green fluorite came in with a bag of rough rocks which we ordered to put into the rock tumbler and polish to a high shine, as per our usual. However, if we put the fluorite into tumble with the other rocks it will dissolve, since it is far less of a hardness than the quartz, amethyst, or agate which arrived with it. 
 
So here we are. We are listing the green and purple chunk and this green chunk separately because the green and purple is larger. This piece is also obviously only the one colour. This piece perhaps weighs 20g to the other's 45g.