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Post by rmf on Sept 18, 2021 7:49:39 GMT -5
For you cabbers that have worked with Eudialyte:
I have a rock which I think is Eudialyte. I have taken it down to 8000 and it has not taken a polish but has an odd surface texture. Very soft which is why I think it is Eudialyte.
Any suggestions on polishing technique?
TIA
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Post by rockjunquie on Sept 18, 2021 8:01:08 GMT -5
I haven't cabbed any, but the cabs that I have bought almost seemed to have a coating they are so uniformly super glossy. Considering that they were native cut, I think that's a possibility.
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Post by hummingbirdstones on Sept 18, 2021 8:39:14 GMT -5
I have some here, but haven't cabbed any yet. I think Vince may have messed around with a piece a few years ago, but he can't remember if he ever even finished it. It wasn't the best quality. 
If I were going to polish it, I'd probably go with a felt lap and 50,000 diamond with extender fluid very slowly and lightly on the flat lap.
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Post by rmf on Sept 19, 2021 9:55:14 GMT -5
I finished a cab yesterday and it has a orange peel polish. the wife says pretty but I have to redo due to a crack on one end.
Thanks for the responses.
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Post by hummingbirdstones on Sept 19, 2021 12:52:08 GMT -5
This is one that Vince cut. He says he thinks he used the Eastwind discs on the flat lap to polish it. Very light pressure.
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Post by hummingbirdstones2 on Sept 19, 2021 21:47:52 GMT -5
rmf - Did you finish your cab on a wheeled machine? For materials like this I do like the Eastwind resin discs at a lower RPM on the flat lap.
The Eastwinds are smoother than some other brands, and the lower RPM lets me use even less pressure than usual for finicky stones.
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Post by rmf on Sept 21, 2021 8:58:13 GMT -5
@hummingbirdstones2 I used a 8: vertical wheel with a 8000 fiber belt and lite pressure. Also tried Tin& Al2O3 on felt. Not as good as diamond. Not sure of wheel, I bought from Kingsley North on a sale and used for testing one worked one did not. This one had a fabric belt with 8000 diamond. Works real good on Lapis, Petoskey Stones, Rhodochrosite ...
Thanks for the info.
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