Hi,
I added this shop, as I live nearby and have surveyed it. It does indeed sell, well, crystals: polished rocks of various types. In particular, it sells crystals which are purported to have healing energies, as well as a few other items related to "new age"/alternative health practices like sage and herbs. I didn't think any documented shop=* value applies, which is why I invented one. Other values could work: at some point I think similar shops were discussed on OSMUS Slack something like "shop=new_age" was suggested. I now see that this combo is documented (https://wiki.openstreetmap.org/wiki/Tag:shop%3Dnew_age), though it's not on the key:shop page and only has 40 or so uses. But this one does mostly sell crystals, so I thought that was more specific. These sorts of shops aren't so uncommon in my area, where many people subscribe to "alternative" beliefs.

In any case, it's definitely a shop that exists and sell things, here's its instagram: https://www.instagram.com/angelsonearth_crystals/?hl=en. Not really sure why you're suggesting it doesn't exist, but I'll assume you're just going through all the options ;).