Is it a gem or just a plastic?

So this morning my friend found a stone or plastic ..i dont know he said its a glass but cant be break but can be a fiber glass? I dont think so...that thing have no bruise yet so do you think thats a gem.....let me describe it.its black when lightened,turned yellow but when I got home turned green when lightened but still black is the normal color and it brings alot of bad things in our house but I dont know if its coincidence or just that I believe on it so please,is it a gem or no?
Asked Aug 04, 2014
i think you have mistaken it , gems are never made up of plastic. its made up of mineral crystal and other things. but not at all of plastic. yeaa some people must have designed for childrens to play with. but gemstone are expensive depends on that if it's precious or semi-precious gemstone. for more information you can visit
Answered Feb 26, 2019

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