Quote:
Well, I'm no expert but in general sand is finely ground rock & mineral deposits, which rocks & which minerals of course vary by location. If you take for example coastal sand, which would be full of bits & pieces of coral & shells; where my inland sand is mostly comprised of quartz, clay, granite etc...sand from Hawaii where the land is formed by volcanic eruption is largely made from exactly that, and tends to be darker & richer in minerals.
Sandblasting used to and still sometimes uses/creates very fine silica dust/powder which is a hazard to your health if inhaled. Course sand has such large particulate that it isn't easily floating around in the air bothering anyone's lungs.
We all live in different places with a variety of natural resources available, right down to sand content.
hopefully I didn't get much or too much wrong here, again, no expert.
I am really loving the ideas here about sand, and it sounds better than the deep bed wood chip system, but I can only find masonry sand where I live. Sounds stupid, but when I called the 2 quarrys I have near me they didn't know what "course sand" or "construction sand" are. Masonry sand is high silica, and that leads me to my next thought - if sand is so bad if high in silica, then why is DE so highly recomended here? isn't DE all silica? Some one please explain for this dumb redneck just doesn't get it!