Deleted
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Post by Deleted on Oct 8, 2014 19:56:12 GMT -5
Jean, is that llanoite? I dont see the blue but all else is correct.
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Post by rockpickerforever on Oct 8, 2014 20:51:45 GMT -5
Scott, it was found local, less than 50 miles from here. No, no blue.
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Post by Deleted on Oct 9, 2014 10:54:14 GMT -5
I ground a 3 inch coral ball this afternoon. that schnit is hard. Probably a 20 minute job. still that is light years faster than what we do. I've spent hours rounding preforms to near sphere. How "round" was it to start?
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jamesp
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Post by jamesp on Oct 9, 2014 11:12:25 GMT -5
I ground a 3 inch coral ball this afternoon. that schnit is hard. Probably a 20 minute job. still that is light years faster than what we do. I've spent hours rounding preforms to near sphere. How "round" was it to start? It was basically 3.2" X 3.3" X 4" and not heated, real hard, reeeeaaaaal hard. Easily could have been faster w/16-20 grit. This type unheated coral is not apt to chip et al so the coarser grit. Same as the Rio stuff. Tough pebbles that Rio stuff. Rio easier than not heated coral X3. Wheel changes fast so it is no big deal. But when you move to obtuse shaped 4 inch category it takes a lot of time. Was looking on Aliexpress at 10 packs w/great pricing. May be needed for real heavy constant hard material. Obsidian and unakite has no wear effects. Butter babies. Love the unakite, feels as if lubricated
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Post by rockpickerforever on Oct 9, 2014 12:35:34 GMT -5
We could call it spheroidilite. Discovered by the great sphere maker that started all this. Almost looks like it has fossils Jean. Rhyolite does that too though. I am looking to make many more small spheres. Just ones that i can chunk in the tumbler to finish, like 2-3 inchers. They used to make marbles out of agate appropriately called 'Aggies'. Wonder what kind of machine they used. O-kaaaaay, whatever works for you, James. Call it what you'd like, I'm easy.
I am examining it in hand right now. Although there are inclusions that have the general appearance of fossils, I don't think they are. Some of the white areas have brown intermingled, with scalloped edges. Kind of reminds me of the edges of the grey shapes in mushroom jasper. I know it is not, but has that type of look to it.
This hand-made sphere is about 1.5" diameter. Like the clear one before this, it is not truly spherical, it does not roll straight. Again, the drunken sailor metaphor is appropriate. With its heft, though, it would make a great shooter!
What??? No beer? <----- fixed it for ya closest I come to owning or wearing any pirate apparel is a Tampa Bay Buccaneers hat One of these hats?
(1 - 4? Really? You may want to keep that you are a Bucs fan to yourself, tee hee!)
My research indicates they drank ginger beer, yuk. No wonder they had such terrible dispositions. I thought when pirates imbibed (which is all the time, I understand), they mostly drink grog. Personally, I'd just drink the rum straight, leave out the extra sugar and lime juice. But then, I'm not worried about scurvy. Actually, I wouldn't be drinking it straight. I'd be drinking a Cuba Libre, with diet Pepsi instead of the coke.
I take it a disk does not last you very long. Going to have to give it a try one day. Smaller one first. Spirit, actually, the disks last longer cutting on a spherical surface than a flat one, since only a small part of the rock is touching it at any one time. But try to give a flat surface to a slab that was badly cut (I'm guilty of this, lol), and it takes forever. Especially if that stone is HARD, like jamesp 's coral. But it is time consuming, and you must have a good eye for shaping, a feel for spatial dimensioning.
I wouldn't mess w/my cousin. He can wear a pink tu tu, and I'm keeping my mouth shut. I ground a 3 inch coral ball this afternoon. that schnit is hard. Probably a 20 minute job. Sorry, but I'm not afeared of your cousin, lol. I'm clear across the country from youse guys. He don't dabble with punkin chunkers, by any chance?
Yeah, no schnit that schnit is hard! 20 minutes is pretty quick, you've got some aggressive grinding going on there. But then, you are just rough preforming, not polishing and all the steps in between.
It will be interesting to see how the round marbles do in the tumbler. Keep us all filled in.
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jamesp
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Post by jamesp on Oct 9, 2014 13:02:58 GMT -5
They do great in a sling shot, so they are doing great in the tumbler. No problem. captbob has lost his color, that boy needs to get out in the sun You sure that sphere is not fossiliferous ? looks like a few devil's fingernails-alien fingernails ?
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spiritstone
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Post by spiritstone on Oct 9, 2014 18:33:57 GMT -5
Ahhh yes, that is correct Rockpickerforever. Less surface applied to the disk. I spent a year doing flats and I agree with you on hard stones. It got to the point I just ordered a 80 grit and let it rip, it helped time wise. Then smoothed it out with the finer grits. I tend not to use dop sticks much, so this should be fun to try making a sphere.
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jamesp
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Post by jamesp on Oct 9, 2014 18:34:59 GMT -5
After dry grinding After 48 hours in 30/60
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spiritstone
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Post by spiritstone on Oct 9, 2014 18:37:45 GMT -5
How did it fair for flat spots?
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jamesp
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Post by jamesp on Oct 9, 2014 18:46:09 GMT -5
How did it fair for flat spots? That obsidian will loose an 1/8 inch in diameter in 2 days spirit. Flat spots pretty much gone, but it is a bit out of round. Not in the view of the photo, but in some views. But will it be out of round after an 1/8 inch is ground off ? Seems that it would, but will know soon.
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jamesp
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Post by jamesp on Oct 11, 2014 15:36:27 GMT -5
Agates and corals a week in the tumbler from the pre-grinder, 10 pounds The big coral is the size of a baseball: Two Rios from pebbles earlier in the thread and the coral on the video: Oats, the whiter rocks in the center were not ground off. They were sun bleached like the whole pebble was before ground. Coral Mixed Rios of alien origin Rio facets More mixed Rios Coral Petrified sea weed-just kidding Fun tool to make quicky big tumbles. Am having a good time with it.
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quartz
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Post by quartz on Oct 11, 2014 23:48:50 GMT -5
Fun stuff, lots of nice mtl., thanks for the show. You've got good pieces happening real quick.
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jamesp
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Post by jamesp on Oct 12, 2014 4:23:47 GMT -5
Fun stuff, lots of nice mtl., thanks for the show. You've got good pieces happening real quick. Brought your bucket of McDermitt wood up to the grinder. Going to give it a try on the wheel. And that piece of green and red moss agate. That one is beautiful.
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jamesp
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Post by jamesp on Oct 15, 2014 19:41:08 GMT -5
Ground some coral, mostly grinding all the fractures out. So the random shapes this one has issues it should hold grit in many cavities when tumbled The bottom
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spiritstone
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Post by spiritstone on Oct 15, 2014 20:00:06 GMT -5
Ground some coral, mostly grinding all the fractures out. So the random shapes These can be cabbed also? Are they a soft or hard stone on the Mohs? New to the coral varieties.
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jamesp
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Post by jamesp on Oct 15, 2014 21:00:53 GMT -5
Ground some coral, mostly grinding all the fractures out. So the random shapes These can be cabbed also? Are they a soft or hard stone on the Mohs? New to the coral varieties. It is a hard agate spirit.
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spiritstone
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Post by spiritstone on Oct 16, 2014 6:26:14 GMT -5
When I read the material was brittle. What is the meaning to that? Do you have this same problem as the Indonesia corals. I need to try my hands at cutting some soon. What does a lb go for of coral found in your neck of the woods?
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jamesp
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Post by jamesp on Oct 16, 2014 16:18:33 GMT -5
I have never played w/the Indo coral spirit. This coral is no where as detailed. It is hard. Most knappers heat treat it to make it chip easier. it is a choice material for them because 50 pound chunks often have no fractures. I heat it to bring the color out in it. Next time I am shipping some out I will send you some.
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spiritstone
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Post by spiritstone on Oct 17, 2014 6:44:35 GMT -5
I have never played w/the Indo coral spirit. This coral is no where as detailed. It is hard. Most knappers heat treat it to make it chip easier. it is a choice material for them because 50 pound chunks often have no fractures. I heat it to bring the color out in it. Next time I am shipping some out I will send you some. I dont care much for the Indo coral look. The ones your finding have an appearance that I'm more interested in. The heating sure can enhance the color. If it happens, that would be appreciated. Tell me first because shipping anything to Canada is friggen expensive and I can cover it. Thanks
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jamesp
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Post by jamesp on Oct 17, 2014 7:41:16 GMT -5
I have never played w/the Indo coral spirit. This coral is no where as detailed. It is hard. Most knappers heat treat it to make it chip easier. it is a choice material for them because 50 pound chunks often have no fractures. I heat it to bring the color out in it. Next time I am shipping some out I will send you some. I dont care much for the Indo coral look. The ones your finding have an appearance that I'm more interested in. The heating sure can enhance the color. If it happens, that would be appreciated. Tell me first because shipping anything to Canada is friggen expensive and I can cover it. Thanks i have paypal or a check is fine. Just for shipping. The stuff that shows polyps is few and far between. But the mono and bitone stuff is what i have a lot of. I have a new spot w/some wild colors. Aways waiting for the rivers to drop to collect. I chip most of it, as the outside edge is the most colorful. Hoping I can flatten the back of the chips with the king kong grinder to make preforms. Thinking about a foot pedal so the motor can be bumped for lower speeds/slower grind/less vibration. How much is the shipping for a MFRB from the states ?
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