And again, silica does not mean sand. As I pointed out a quartz crystal is silica but is not sand. And if the other poster bothered to research DE more they would have found that in its natural form from which it is mined it is mined as a rock, not sand, then crushed down in to a fine powder.
But this other poster has a history of arguing and telling everyone else they are wrong just because she thinks so. Then she resorts to name calling and other personal attacks when she is proven wrong. I have already had a number of people warn me about her games when I first came to MDA.