All That Quartz
For no particular reason, I thought I'd look for a good explanation of the quartz-that-isn't-quartz (pineapple, strawberry, etc.) and I found a pretty good blurb at Rings 'n' Things: What's with this quartz?
A few other places state outright that this is man-made stuff (ArtGems, Beads Forever, Fire Mountain Gems and Beads and GemBeads.com, just in the first few pages of a google search). This is not to say that every place I didn't link swears they're actually gemstones ;-) but I think it is irritating that I am still having vendors tell me they are "real."
This has become one of my "trustworthiness" tests. I ask a vendor, "What is this, it's pretty!" and if they say, "Cherry (or whatever) quartz" and they don't follow up with a disclaimer, I will ask if it's a gemstone or if it's glass. There is only one right answer to that question, and the wrong answer prompts an "Oh really, I thought that was just a trade name for this color glass," which gives them one last out. (My favorite recent claim was "sapphire quartz" for some pretty blue beads. Riiiight....)
I do sometimes still buy the beads, if the price is right. In all truth, for myself I don't care if it's glass or not, as long as it's pretty, but I'm not going to pass on bad information if I know better.
