Brent
noticing nice landscape pebbles
Member since June 2007
Posts: 84
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Post by Brent on Mar 5, 2008 0:02:48 GMT -5
Does anyone have a list of what polish are best for different type stones? Maybe
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Post by connrock on Mar 5, 2008 4:41:22 GMT -5
Hi Brent, I know there are a few in the "Tips" section but you'll have to do a little browsing!
connrock
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rogerr
starting to shine!
Member since January 2007
Posts: 31
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Polish?
Mar 6, 2008 13:10:55 GMT -5
Post by rogerr on Mar 6, 2008 13:10:55 GMT -5
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fanatic
starting to spend too much on rocks
Member since October 2007
Posts: 233
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Polish?
Mar 6, 2008 13:33:05 GMT -5
Post by fanatic on Mar 6, 2008 13:33:05 GMT -5
Good information, but no mention of alumina oxide??
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Polish?
Mar 6, 2008 14:36:28 GMT -5
Post by captbob on Mar 6, 2008 14:36:28 GMT -5
uh... Linde A is alu nevermind Edited to add: This write up is on an eBay listing ~ Sapphire Powder is actually 99.9% PURE 0.3 micron aluminum oxide. It is "A" grade and the best you can get and is known to some under the old brand name: Linde A.
Sapphire Powder is used for polishing tourmaline, beryl, garnet, topaz, peridot, danburite, etc. It has a hardness of Mohs 9, and is therefore most useful for polishing very hard and/or difficult materials (but not corundum). It's great for agates, thundereggs, jaspers, etc.
Guess that's an old polish chart
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rogerr
starting to shine!
Member since January 2007
Posts: 31
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Polish?
Mar 6, 2008 16:24:19 GMT -5
Post by rogerr on Mar 6, 2008 16:24:19 GMT -5
I disavow any knowledge of your rock destroying activities based upon the information in the 'old chart' i had found. hahahaha
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Polish?
Mar 6, 2008 23:33:26 GMT -5
Post by deb193redux on Mar 6, 2008 23:33:26 GMT -5
That chart is mainly for faceting. Or polishing stone cabs on a buff wheel. Not always the same for tumbling where AO or CE (CMO) will work most of time.
ALso 90% of what you do will be jasper or agate. Note chart does not use AO for agate, but it does agate just fine in tumbler. ALso almost any polish does jasper.
Getting the load right in water and range of stones, getting the time right in not rushing early stages, washing between stages, using pellets in polish - these will all matter more than which polish - at least most of the time in a tumbler.
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Post by johnjsgems on Mar 7, 2008 0:41:07 GMT -5
Covington has a polish chart on their website. It also predates the explosion of aluminum oxides on the market now. It has Lindy A as the only al. ox. listed (.3 micron) as well.
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Post by Jack ( Yorkshire) on Mar 7, 2008 3:33:27 GMT -5
Hi Rodger
I have tried to find this chart befor
[glow=red,2,300]Any chance of pinning it in" Lap Tips "?[/glow] this is a question that comes up quite often and is the basis of our polishing !!!!
Thanks a lot
Jack
Yorkshire UK
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Post by connrock on Mar 7, 2008 8:09:34 GMT -5
Jack,I know for a fact that there at least 3 polish charts in the "Tip's" section but just try to find them!!!!!!
connrock
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Polish?
Mar 7, 2008 20:58:37 GMT -5
Post by deb193redux on Mar 7, 2008 20:58:37 GMT -5
If we were to pin something it should be polishes recommended for TUMBLING stones of different type.
Maybe someone could compile a list of the usual suspects, tigereye, agate, jasper, petrified wood, obsidian, epidote, ... a few more; and then the polishes - and pre polishes - that have worked for folks here.
Might have to distinguish rotary from vibe too.
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Post by Jack ( Yorkshire) on Mar 8, 2008 4:15:21 GMT -5
Dead on Deb Ok so could a tumbling polishing sheet be pinned Tip's" section As Conrock says "--3 polish charts in the Lap Tip's section but just[glow=red,2,300] try[/glow] to find them " So we can always find AT least one of them Jack Yorkshire UK
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Post by connrock on Mar 8, 2008 7:29:47 GMT -5
Ditto what Jack said Deb!
connrock
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