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<p>[QUOTE=&quot;desertgem, post: 1621317, member: 15199&quot;]You can&#039;t refine it to .999 due to the Hafnium normally in the ore. However the zirconium used in cladding nuclear fuel rods have the hafnium removed and is of the highest purity. I hope that is not where these are from <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; In a bar form it really would be of a low toxicity and ignition risk. It is only when it has a large surface/volume ratio in oxygen presence that ignition is a risk. It is more commonly in nature as a oxide, and found in Zircons ( natural gemstone) and Cubic Zirconium ( man made gemstones). The oxide is used as an abrasive ( best for quartz or glass).</p><p><br /></p><p>I would have no trouble having a manufactured bar like that around, except it is overpriced and certainly not rare in nature. IMO.[/QUOTE]</p><p><br /></p>

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