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Post by Toad on Dec 11, 2014 4:26:22 GMT -5
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Sabre52
Cave Dweller 
Me and my gal, Rosie
Member since August 2005
Posts: 20,494
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Post by Sabre52 on Dec 11, 2014 7:15:07 GMT -5
Hint, for obsidian, go with the higher dollar tin oxide for a polish. That seems to be the final polish I always get the best results with. Forget who here told me about that, but when tried the tin oxide instead of my usual AO, it made a world of difference in my results.....Mel
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Post by Drummond Island Rocks on Dec 11, 2014 7:18:54 GMT -5
Obsidian will be a fast tumble for the contest. I am looking forward to it. The last couple years have been brutally crushed agates.
I have mixed reaction to using obsidian for the contest due to the fact that it is so common. Seems hard to police people to using the 3 pounds that are shipped to them?
Chuck
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Post by Toad on Dec 11, 2014 14:32:59 GMT -5
Maybe they'll irradiate the 3 pounds to track what's what?? LOL.
Mel - tin oxide is all I use, so works out for me.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Dec 12, 2014 11:03:09 GMT -5
Good luck to all who enter.....Thumbs up
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tkvancil
fully equipped rock polisher
Member since September 2011
Posts: 1,548
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Post by tkvancil on Dec 12, 2014 11:34:05 GMT -5
I'm on the fence about entering. With only 3# of material I'm afraid it would get lost in my UV18 if mixed with other ob. Maybe I can run it with a bunch of marbles or something. Don't want to break the rules. Will make my decision in a couple days, application printed and waiting to be sent.
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Post by Toad on Dec 12, 2014 15:37:44 GMT -5
I'm on the fence about entering. With only 3# of material I'm afraid it would get lost in my UV18 if mixed with other ob. Maybe I can run it with a bunch of marbles or something. Don't want to break the rules. Will make my decision in a couple days, application printed and waiting to be sent. Do it. I'm going to buy some colored glass as filler for my 12-lb barrel. That way I can keep it full without mixing obsidian. |
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tkvancil
fully equipped rock polisher
Member since September 2011
Posts: 1,548
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Post by tkvancil on Dec 13, 2014 10:04:43 GMT -5
I'm on the fence about entering. With only 3# of material I'm afraid it would get lost in my UV18 if mixed with other ob. Maybe I can run it with a bunch of marbles or something. Don't want to break the rules. Will make my decision in a couple days, application printed and waiting to be sent. Do it. I'm going to buy some colored glass as filler for my 12-lb barrel. That way I can keep it full without mixing obsidian. Good idea. Have some glass roughed already and some more to run. I'm in. Maybe one of us can give Chuck a run for his title.  |
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Post by Toad on Dec 13, 2014 23:25:20 GMT -5
Don't know about giving Chuck a run, but I'm excited to try obsidian for the first time!
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Post by Drummond Island Rocks on Dec 18, 2014 17:57:50 GMT -5
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Post by gingerkid on Dec 18, 2014 18:13:33 GMT -5
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,607
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Post by jamesp on Dec 18, 2014 18:28:53 GMT -5
My entry Jan :  |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,607
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Post by jamesp on Dec 18, 2014 18:37:45 GMT -5
This is like a bad dream Jan. 'The Fraternal Order of Obsidianites' will revel in their brilliant reflections |
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Post by Toad on Dec 18, 2014 19:01:54 GMT -5
My entry Jan : LOL! Hopefully mine is somewhere in between. My application was dropped in the mailbox yesterday... |
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Post by Drummond Island Rocks on Dec 18, 2014 19:09:03 GMT -5
My entry Jan : LOL! Hopefully mine is somewhere in between. My application was dropped in the mailbox yesterday... I hope yours is somewhere in between too  Chuck |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,607
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Post by jamesp on Dec 18, 2014 19:13:22 GMT -5
Too funny. May the best man win.
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Post by Toad on Dec 18, 2014 19:21:38 GMT -5
Ha Chuck! With all the beautiful obsidian RTH turns out, I'll be very surprised if we don't get at least 2 of the top 4 spots. Hopefully a sweep!
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Post by Toad on Mar 25, 2015 14:40:28 GMT -5
Still a bit early to be running a tumbler in the garage in NE Ohio, but I didn't want to wait anymore.
Got a few large chunks of my own obsidian in with what I was sent, so no chance of mixing up with the small stuff. Rather than buying colored glass, I'm using busted up marble as filler. Got the broken pieces from a trophy shop for free!!
Anyone else rolling yet?
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Post by Drummond Island Rocks on Mar 25, 2015 15:57:48 GMT -5
Already done. I'll have to freshen them up when it's time to send them in. Less then 30 days from start to finish on this batch. Obsidian does not present a time challenge in the first stage like most rocks. The Brazilian agates I submitted last year took a full 4 months to complete.
Chuck
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tkvancil
fully equipped rock polisher
Member since September 2011
Posts: 1,548
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Post by tkvancil on Mar 26, 2015 8:58:46 GMT -5
Rolling mine but have made some errors .... Chipped up larger pieces when slurry over thickened with borax .... frosted larger pieces when volume got too low .... Looking better now, frosting gone, chips nearly ground out, some ready to move on. Funny I should be having issues with the rough grind. Most have issues with finishing steps, no?
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