bought one packet of #0 sand today. It's in the new yellow bag instead of the white colored ones we used to see.
Open and the sand is brown instead of white, that is acceptable.
Put a magnet in to remove iron particles, in just two small scoops, I removed more iron particles compared to 16 bags of the sands in the older white packing and still a lot more. 99% of them are very fine powder like iron particles. I was still removing and can't seems to finish cleaning it after 30mins.
I finally gave up and not going to use this bag anymore. $6/- down the drain.
Don't ask me where I bought it, best to avoid the sand in yellow packings. Should not even be called sand, should be grade #0 iron particles.