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Post by creativeminded on Dec 11, 2005 11:59:27 GMT -5
I really don't remember when I started this but I took them out of polish Wednesday. Before  After  Tami |
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Post by Alice on Dec 11, 2005 12:25:54 GMT -5
I love looking at all those shells
Great job Tami
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Post by Cher on Dec 11, 2005 12:37:00 GMT -5
That's really cool Tami, nice job.
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Sabre52
Cave Dweller 
Me and my gal, Rosie
Member since August 2005
Posts: 20,504
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Post by Sabre52 on Dec 11, 2005 12:55:52 GMT -5
Nice Tami! Fossils that polish are one of my favorite sub collections. Gemstones with a biological history are so kewl. I polish every fossil I can find that'll take a shine *L*....mel
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Post by cindie on Dec 11, 2005 12:58:10 GMT -5
what about things like sea shells, small ones. will they tumble to a shine?
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,504
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Post by Sabre52 on Dec 11, 2005 13:17:52 GMT -5
cindie: They might polish if you run them for a very short time in fine grind, prepolish and final polish ( abalone shell works up pretty well sometimes) with lots of plastic beads but they are pretty soft and fragile. Would probably disappear fast in any kind of coarse grind.
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Post by rockds on Dec 11, 2005 14:12:33 GMT -5
oooh, I got some of that but haven't started yet, may have to bump it up.
good job
robert
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Post by jdennis on Dec 11, 2005 14:14:55 GMT -5
A very nice job! They look great..
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Post by LCARS on Dec 11, 2005 14:48:54 GMT -5
Cool!
Those look like they are challenging to shine!
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Post by rockyraccoon on Dec 11, 2005 15:49:48 GMT -5
lcars they will shine up beautifully but you have to run them 4 yrs, 6 mos, and 29 days to get them there. these were a big challenge to me and i have some still rolling almost 1-1/2 yrs after they started. no kidding about that now.
kim
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Post by krazydiamond on Dec 11, 2005 16:24:32 GMT -5
great batch, Tami! those are so cool!
KD
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Post by Alice on Dec 11, 2005 17:05:08 GMT -5
Kim, can I ask what sort of trouble you had? Do they chip easily?
I was thinking of getting some, but if they're that much trouble, maybe I should look into getting something else.
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joanna
spending too much on rocks
Member since November 2004
Posts: 385
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Post by joanna on Dec 11, 2005 17:10:16 GMT -5
Wow, those turned out great. I've always loved the way turtetilla looks but have steer clear of them because I've hear they can be tricky to get to shine. Looks like you got a very nice shine with yours.
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Post by rockyraccoon on Dec 11, 2005 22:20:05 GMT -5
alice they have some spots that are not as highly agatized as the rest of the stone. you can see it in tami's pic on the 3rd row 1st rock on left. the whitish area around the shells undercut in these areas. it is softer, doesn't smooth and as you grind the stone down the shell(s) will break loose from these areas. then you have to get it smooth where the shell was. i finally took mine and ground these areas down on the genie. that whitish stuff (limestone) does not smooth or shine. i'm a freak about them being smooth before they go to 120/220 and this was like 1 step forward and 2 steps backwards over and over. i can see where they would be fine for slabbing and cabbing because you could design your cabs only in the agatized areas and chunk the whitish parts.
tami you did a great job on yours by the way.
kim
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Post by Alice on Dec 11, 2005 22:34:21 GMT -5
Thanks for letting me know Kim. Looks like I'll be looking for other rocks  I do have an end slice which I have in the tumbler right now, but it so thin I doubt I'll have that sort of problem with it. If anything, it'll break in half. I just finished a load of Mexican lace that took 25 weeks in coarse. I'm really not in the mood to do that again any time soon |
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Post by LCARS on Dec 11, 2005 23:31:54 GMT -5
lcars they will shine up beautifully but you have to run them 4 yrs, 6 mos, and 29 days to get them there. these were a big challenge to me and i have some still rolling almost 1-1/2 yrs after they started. no kidding about that now. kim Wow Kim, you have ALOT more patience than me if it takes that long to tumble! |
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rollingstone
starting to spend too much on rocks
Member since July 2009
Posts: 236
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Post by rollingstone on Dec 12, 2005 3:51:17 GMT -5
Tami, nice job, turitella is such an appealing material (and difficult).
Kim, gee, I don't know how to break this to you gently, but if you've been running them for a year and a half and they still aren't working for you, it's time to let go!!! ;D
Alice, Kim is right, I got 3 lbs of turritella from the Rockshed, and most of it ended up in the garbage. A lot got rejected after coarse grind after those soft white spots Kim mentions just continually pitted on me. Of the ones I ran through to polish, if there was ANY trace of soft white area on them then they ended up as failures. I estimate only 10% of them worked out well for me. I have seen better looking stuff in some ebay auctions, but I haven't followed through on any of these as my first experience still has me rather jaded. I'm sure rough varies greatly, and Tami did much better than me, but you really have to be cautious with turritella.
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Post by creativeminded on Dec 12, 2005 9:28:13 GMT -5
I got this from The Rock Shed.
I just did my usual recipe and they turned out great.
2 weeks in 60/90
1 week in 120/220
1 week in 500
1 week in 1000
1 week in Tripoli
4 days in Cerium oxide/aluminum oxide mixed.
They have a beautiful shine on them.
Tami
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Dec 12, 2005 13:06:10 GMT -5
Nice Tami- Oh I have a few chunks that just might have to go into course here soon!
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Post by rockds on Dec 12, 2005 14:23:24 GMT -5
Hey Tami, how does the CO/AO polish mix work for you?
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