PFS is actually incredibly recommended. I've used the (not recommended) play sand with washing, and it works well with care. Africans sound like a great idea with that pH out of the tap. So don't be scared off.
With scary scientific names you need to be able to take a step back. For instance, you can find shampoos at the local co-op that are "SDS free" but contain "sodium lauryl sulfate." It's the same thing, different name. And it's fine for most people, except a few percent of very sensitive people.
One of the most common solvents in research is acetonitrile. Which sound very pleasant...until you go to the IUPAC name and it's methyl cyanide as well. Same thing, but one name is scary. If you're worried do a search for the MSDS (material safety data sheet) for a chemical you're run into. You may have a harder time finding it for a strange mineral name, such as this one, but it will give you all the details you need...although they tend to err on the side of extreme caution.