yes, it would work as cushion sand under a pool
Approximately 18 bags. Not sure what you are planning on using it for, but you may be better off to go buy 3 75 Lbs tube sand (like you use in the rear of a vehicle for weight in the winter). 3 of those would run you about $20, & will serve most large uses just as well, or better.
This is a 48;lbs bag of sand, ( scroll down the page and look in the description and it’s stated there) Attached a screenshot
Here is the math for it. 10X10X.166=16.6 cubic feet. Since each bag is .5 cubic feet it would take 33 bags. Good luck.
Well, most quartz type sand that we have here is silicon dioxide, also known as silica. So, yes, it contains/is silica. I would think the most toxicity for animals would be if you dropped the bag on them, or buried them in it until they suffocated.
Silica is a general term for silicon dioxide, which is what sand is made of. Pure silicon is what transistors and most solid state electronic devices are made of. Glass is melted silicon dioxide with additives to make it clear or colored as in stained glass. All solid silicone related substances are chemically inert and unreactive. Hope this helps. Sand is fun to play in.
Yes it is safe for hamsters. It’s a lot of sand but it is safe for them.
I don’t know if hamsters like sand, but I’ve used it in aquariums with no trouble! I would suggest rinsing the dust out in a bucket and drying it in the sun before you use it for a small animal, though.
It says 48 lbs on the product page if you scroll down.