Sorry, unsupported claims are not refutations.
He may have had a falsification test. You have just demonstrated that you do not understand the scientific method again. He may have even passed it. That does not make his hypothesis true. Please pay attention. When one uses enough details to construct a testable hypothesis it is often testable by means that the author did not realize when he wrote his work. That can falsify it too. But from my understanding his test was flawed.
I do not see you quoting from and linking the article. That is what you need to do. Let me help you. Here is a link to it:
LOL! That is not a reasonable test. Once again that is not how one tests in the sciences. A fist sized piece would possibly not be a good model. I am not sure of the crystalization times, but I am pretty sure that it is longer than can be done in a conventional lab.