Post by johnjsgems on Apr 24, 2010 21:59:42 GMT -5
I've tumbled a lot of beach rock. They always come out better after at least a short run in 60/90 (several days to a week). Even though they are nicely rounded there are usually some deep scratches. I used to have access to a private beach in Central CA. that was literally all rock. You could fill buckets with good unfractured, unblemished rocks. They still came out better with a 60/90 run.
If you need some quickly (2-3 weeks) polished rocks of average quality for some project you can get away with starting at 120/220 with carefully selected cleaned beach rocks. But as John says it is best to do a 60/90 run first. Steve
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
Post by deb193redux on Apr 25, 2010 13:49:56 GMT -5
You should also test hardness and/or smash one to see if there are pits and fractures all the way to the center. Some beach rock is quartzite, and will take a hard polish. Other rock is very altered jasper, and is too soft to take a polish. Too many folks mistakenly believe any rock can be polished.
The fact that these are very rounded suggests that they may be the softer variety. Post a pic and maybe we can give an opinion on whether the rock will polish.
If they are not going to polish, you need to think about clear coatings.
mr.mohs: people on the street
Sept 22, 2014 21:47:31 GMT -5
Fossilman: Nice to finally see rain...I welcome it with pleasure...Getting tired of the "HOT" weather...
Sept 24, 2014 9:02:15 GMT -5
mr.mohs: be sure to check out my AZ monsoon link Mike! lots of rain on the desert !
Sept 24, 2014 9:21:40 GMT -5
bsky4463: Monsoon in September leads to good pickings in Roctober - mohstly. Cheers
Sept 24, 2014 22:09:29 GMT -5
rockpickerforever: Andy, that's just what I was thinking! Will have to check out all the (normally dry) washes in Ocotillo Wells next time out, see what has been exposed by the flash floods. Probably not until November... Wonder how Quartzsite fared?
Sept 25, 2014 12:01:30 GMT -5
mr.mohs: rockpickerforever yes I do -a refurbished Franton called- Welcome to the Machine- from BeefRock
Sept 26, 2014 21:42:52 GMT -5
broseph82: Going to be up early tomorrow for some more hounding!!
Sept 28, 2014 21:02:09 GMT -5
dale: Hi I'm new, hope this is the right place to ask a question. I want smooth (no rough or sharp edges) pea gravel about 3/8" max., natural untreated stone, don't care about polish or look, just need the smooth stones. Could I buy stones or tumble them?
Sept 29, 2014 8:03:56 GMT -5
Fossilman: The Dollar Stores amd Michaels carry such a thing...Thumbs up
Sept 29, 2014 8:19:05 GMT -5
Fossilman: YAAAAAAA!!!! Headed out to a new "Rock Store" called "Al's"...Heck I might come home with some goodies..
Sept 29, 2014 8:19:54 GMT -5