antk
New Member
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i live in california, so that prop 65 warning is everywhere, including the hth sand
The article i found wasn't a prop 65 but something more generic but again i'm not sure if it is related to arbitrary small particles getting into the lunges or something specific to the chemical composition of the mineral. In doing the search i was mostly just trying to figure out if the stuff was fish safe and/or inert. I wasn't trying to play advocate for/against the stuff. Even in their natural habitat there are areas where various things that have long term negative impact can be found - ignoring man made intrusion. I.e, it could be i'm overly cautious but lacking expertise understanding i tend to lean towards a more conservative approach.i live in california, so that prop 65 warning is everywhere, including the hth sand
I think the concern is more of the purity given its intended usage. For example play sand is intended to be used by kids as is pool filter sand (i'm not sure if it is regulated or not but one would presume greater care would be used around its composition; though from some of the issues found with milk production one is never sure; however the stuff your are suggesting is targeted more torwards industrial usage so i would presume (hence unsureness) around it containing other stuff less suitable for fishy environment. I honestly i don't know it might very well be a baseless concern since after all a fair amount of natural minerals is probably found in or near the amazon as well as quite a bit of bird poopWhen polishing and shaping gems, fine dust is created. It is bad news. I think that even if staurolite were to leach toxics, the amounts would be so tiny that water changes would keep it from building up. Generally speaking, ALL crystallized minerals are stable.