Are Marbles Toxic. Black and white navarre marble 1638. There is little need to be worried about handling or being around uranium marbles and glassware. They may have lead or cadmium or have other dangerous metals or chemicals added especially if the glass is colored and even clear glass may be made with chemicals that are not food safe.
This unique zebra colored marble fetched nearly 1700 at auction multiple times more than what most people spend on marbles in their entire lives. Also if the marbles develop a film or discolor the water in any way you probably wouldn t want to put it in your fish tank.
Are glass marbles safe for a fish tank.
Guest poster patrick cote is a class of 2013 pharmd candidate from creighton university. Are glass marbles safe for a fish tank. Radiation and radon are generally lower in marbles. Marbles themselves are generally safe for use in aquariums.
