evolutoin
off to a rocking start
Member since October 2008
Posts: 1
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Post by evolutoin on Oct 10, 2008 13:39:19 GMT -5
Hello Everone I am new to the forum and just starting at tumbling. My question is can I tumble granite? I have tons of scrap granite from my countertop shop and am sick of throwing it in the garbage. Thank you in advance Nate
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randy
starting to spend too much on rocks
Member since August 2008
Posts: 117
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Post by randy on Oct 10, 2008 14:03:20 GMT -5
I would think so. Your countertops sure have a nice polish. Can't see why a tumbler would be any different at getting a high polish. You might get a little bored after awhile if you were to tumble only granite though. Worst case, give it a try and it doesn't go well. Good luck.
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Post by Bikerrandy on Oct 10, 2008 16:15:18 GMT -5
Yes, you can. Granite is soft though, so it would tumble better without other kinds of rock I think, but I've read on here that it will polish nicely.
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Post by Toad on Oct 11, 2008 8:19:29 GMT -5
Yep, it tumbles well and you can get a polish. But it has variable hardness and so pits and undercuts easily. The nice thing about granite though is that it comes in great varieties.
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Post by krazydiamond on Oct 11, 2008 8:23:00 GMT -5
yeh, don't throw it in the garbage! in fact, what kind of scrap do you have? got any to sell?
KD
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KG1960
has rocks in the head
Member since August 2008
Posts: 512
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Post by KG1960 on Oct 12, 2008 21:05:28 GMT -5
Yes you can. I have done it. As others have pointed out, the grains can be variable hardness and the final result can have an "orange peel" effect, but I think it's quite interesting and nice.
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88pathoffroad
spending too much on rocks
Oregon ROCKS!
Member since August 2008
Posts: 305
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Post by 88pathoffroad on Oct 18, 2008 13:54:42 GMT -5
I picked up a ton of brown granite scrap from some guys that did some custom countertops on some bi-level condos I helped paint. Must have been 75 lbs of it...I broke it into 1" or 2" chunks (it was about 1/2" thick to begin with) and used it for filler on rough, medium and then a polish run. It took a polish on the quartz grains but the feldspars were blurry and unfinished. Altogether it didn't work out too well. I just use the chunks for filler now.
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gatorflash1
spending too much on rocks
Active in Delaware Mineralogical Society, Cabchon Grinding and Polishing, 2 Thumlers B's and a UV-18
Member since October 2018
Posts: 375
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Post by gatorflash1 on Jan 13, 2020 20:14:05 GMT -5
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Post by aDave on Jan 13, 2020 20:26:34 GMT -5
The OP hasn't been on since 2008.
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whyofquartz
spending too much on rocks
So, Africa is smaller than I expected...
Member since December 2019
Posts: 316
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Post by whyofquartz on Jan 14, 2020 11:50:20 GMT -5
Even though you resurrected this thread it is good info to have since I have purloined acquired come to be in possession some rail granite if my own, as well as some other wild granite
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EricD
Cave Dweller
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Jan 14, 2020 13:59:48 GMT -5
I've got a bunch more in the rotary that will get polished as rocks, not slabs. I also happened upon some railroad granite somehow...
Will post some pics of them in a couple months.
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Post by RocksInNJ on Jan 14, 2020 17:08:00 GMT -5
Yea while distracted by the rocks, he forgot to untie the damsel in distress from the tracks. Luckily I was flying by and abducted saved the poor girl.
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