notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Feb 19, 2017 13:18:55 GMT -5
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Post by Pat on Feb 19, 2017 14:37:16 GMT -5
The big black and red stone could be Obsidian. Does it have a conchoidal fracture?
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Post by Jugglerguy on Feb 19, 2017 14:52:20 GMT -5
My guess is granite.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Feb 19, 2017 15:09:12 GMT -5
could very well be granite. next question is you think I could break it up and tumble it? I mean granite takes a good polish for countertops and what not. and it has a nice look especially on the ends with all the pink and black spots. even if I threw out the big boring black chunk out of the center.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Feb 19, 2017 16:03:47 GMT -5
The big one is Granite and will cut some nice slabs......Plus three of the smaller ones are too..... I see some quartz in the bunch too.......
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Post by Jugglerguy on Feb 19, 2017 16:07:58 GMT -5
could very well be granite. next question is you think I could break it up and tumble it? I mean granite takes a good polish for countertops and what not. and it has a nice look especially on the ends with all the pink and black spots. even if I threw out the big boring black chunk out of the center. Granite does not tumble very well. It will shine up nicely, but it also undercuts. The black areas are softer than the other parts and therefore wears away faster. So those areas will be cut deeper and won't shine. It took me a few years to train myself to stop picking up granite and hauling it home. I still bring an especially colorful stone home once in a while.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Feb 19, 2017 16:44:50 GMT -5
guess ill just toss the big one back behind the planter where I found it lol. I'm totally new to tumbling so even inperfect rocks might look like treasures to me.
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Post by Jugglerguy on Feb 19, 2017 17:02:07 GMT -5
guess ill just toss the big one back behind the planter where I found it lol. I'm totally new to tumbling so even inperfect rocks might look like treasures to me. Around here, it's a whole lot easier to find granite in any size you'd want. I wouldn't put the effort into breaking up that big one. Go ahead and tumble some, it's not that bad and might be a cheap stone to learn on. It was my very first batch. If you can find some beach rocks or river rocks, they'll also be rounded already and save you a lot of time.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Feb 19, 2017 18:16:51 GMT -5
I'm all over my being bummed out cause my big rock was granite now. I walked out my back door down to the creek behind my house figured ide look in the water, seeing as how running water is the only water that isn't frozen over right now. if anything looked interesting I would walk back up to the house and grab my waders. I turned around looked at the washed out bank and found these and a few pieces of quartz. not bad for a 10 minute rock hounding trip trudging through the snow in a tee shirt.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 24, 2017 13:25:18 GMT -5
That looks like slag glass. Does it have bubbles ?
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