Is this an expensive gem stone/?

hello dear, I bought few beautiful pink/red stones beautifully cut like a rose flower. I bought them for 5 dollar! but one of them has a rare beautifull pattern, in 5 corner the stone has clear white glassy color! the stone is large as a pink pong ball ,so my question is: can a normal stone be gem and very expensive because of its rare pattern?

please have a look at photos
Asked Mar 18, 2016

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