harrym
having dreams about rocks
NH - The Granite State
Member since January 2019
Posts: 59
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Post by harrym on Mar 31, 2019 11:55:11 GMT -5
So I just finished my second batch and I don't think it came out as well as my first. There were four stones in particular that I was very pleased with. Like many of you post they have that wet glass like shine. However, the rest of the batch didn't fare so well. Yes, they have a sheen to them, but not like the best four. Pic below. The sodalite's look pale in comparison, especially seen in hand and not by photo. I suspect that sodalite may need to be run on its own? But even the quartz, while better isn't as good as the nice four. My 2nd question is what type of stone might this be? I was guessing petrified wood because it looks like the squiggly lines may be the work of a worm. An ideas? The whole batch
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Mar 31, 2019 12:04:08 GMT -5
My 2nd question is what type of stone might this be? My guess would be a Lace type agate. If softer than agate, then perhaps a floral travertine (mis-called "onyx" by some). Nice group!
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Post by fernwood on Mar 31, 2019 12:28:59 GMT -5
Sodalight is softer and should tumble by itself or other softer stones.
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Post by aliengreensoul on Mar 31, 2019 20:07:58 GMT -5
moonstone maybe?
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Post by Rockindad on Mar 31, 2019 20:43:42 GMT -5
The Sodalite we did here forum.rocktumblinghobby.com/thread/86759/sodalite-finished-decent-results turned out pretty well but we really babied them. We used 75% ceramics, thickened the slurry to slow things down and did not run anything else with it. It is tough enough to do on it's own much less with other harder stones. Even with all of the pampering we did there were still a couple of stinkers and a few that would have an amazing shine on one side and be as dull as could be on another. Just the nature of the beast. When we have had them in a mixed batch like yours it has been a total crapshoot. Al
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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 Apr 1, 2019 7:00:12 GMT -5
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Post by HankRocks on Apr 1, 2019 7:21:00 GMT -5
If I was going to tumble Sodalite I would start it in 220 with lots of slurry and ceramics/pea gravel. Then check it after 2 or 3 days to see how it's grinding. In my book it's too expensive to reduce it with too much tumbling.
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NevadaBill
fully equipped rock polisher
Member since January 2019
Posts: 1,332
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Post by NevadaBill on Apr 1, 2019 18:39:48 GMT -5
My favorites are the really dark blue ones. I wonder if that is Lapis? I wish I could find some like those some day. Thanks for sharing!
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minniek
having dreams about rocks
Member since January 2019
Posts: 74
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Post by minniek on Apr 1, 2019 21:19:33 GMT -5
Those dark blue ones are Lapis. I love Lapis. To tell if it’s lapis, it looks like the night sky, with the dark blue, grey and sparkles. Sodalite is like the daytime sky, bright blue and white.
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