An Ethical Dilemma Involving a Polyhedral Crystal

I just ordered a crystal rhombcuboctahedron on eBay because I like its geometrical properties, despite the mystical claims in the item listing. I did so with the full knowledge and expectation that these claims are almost certainly false, because, well, they’re mystical claims.

Rhombicubocta

Here’s my ethical dilemma: would it be ethical to lab-test those claims, then post the results in the feedback I leave?

[Image created using Stella 4d, available at http://www.software3d.com/Stella.php. This isn’t a picture of the crystal on eBay; it is made of quartz, and not rainbow-colored. It is of the same shape, however.]

How to Distinguish Real from Fake Silver Bullion

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It seems a certain teacher, with 19 years’ experience teaching chemistry, has written a guide, for buyers on eBay, to help them avoid getting ripped off by the (tiny) minority of eBay sellers who sell fake silver. If you buy silver on eBay, or just want to verify that some silver you have is real, you might find this useful, so I’m posting a link to this guide right here: http://www.ebay.com/gds/Real-or-Fake-Silver-A-Chemistry-Teacher-Explains-How-to-Know-/10000000205613973/g.html.