yes it can have iron in it..the acid would attack the iron<br><br><div class="gmail_quote">On Thu, Mar 21, 2013 at 4:45 PM, Tony Warney <span dir="ltr">&lt;<a target="_top" href="mailto:tony@excelstoneandtilecare.com" target="_blank">tony@excelstoneandtilecare.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I am doing a bid on a sand blasted basalt floor. The floor is about a year old. I noticed some brown areas on some of the tiles. The contractor said that they came that way but it cleans off with a slightly acid based cleaner. I am wondering does basalt have iron in it and could it show rust stains or dark stains after w clean it? Thanks Tony<span class="HOEnZb"><font color="#888888"><br clear="all">

<div><br></div>-- <br><div>Tony Warney</div><div>Excel Stone and Tile Care</div><div><a target="_top" href="http://www.excelstoneandtilecare.com" target="_blank">www.excelstoneandtilecare.com</a></div><div><a target="_top" href="tel:760-788-9400" value="+17607889400" target="_blank">760-788-9400</a></div>

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</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><img src="http://www.stoneforensics.com/stone-detective.png" width="200" height="129"><div>Frederick M. Hueston PhD<br><a target="_top" href="http://www.stoneforensics.com" target="_blank">www.stoneforensics.com</a><br>
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