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I would suggest being a little careful. Glass is very hard, harder than steel in fact (5.5 for glass vs. 5.0 for steel on Moe's Hardness scale) HOWEVER!!!!! Quartz is 8 on hardness, and WILL scratch your glass or acryllic tank with a vengance if you are not very careful!

Good luck! It sounds like it would look awesome!
 
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