You're not parinoid (They are really seeing me far too!). My wife is actually a glass artist and she uses silicone carbide to grind and polish her glass. Actually we have a equipment identified as a flat lap which is a considerable steel plate that spins while water and carbide http://shanefatr632.theglensecret.com/silicon-carbide-in-new-electricity-iteration-programs-and-destiny-traits