meviva
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Post by meviva on Aug 4, 2017 22:37:22 GMT -5
Why does porcelain jasper stink when you cut it? It's giving me a headache, it almost smells like tar. Andrea  |
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Post by deb193redux on Aug 4, 2017 23:08:56 GMT -5
mine don't smell. that pattern is killer.
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Post by accidentalrockhound on Aug 4, 2017 23:12:57 GMT -5
Might be your oil, sure is a nice slab.
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meviva
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Post by meviva on Aug 4, 2017 23:50:18 GMT -5
I just changed the oil yesterday. I cut a few slabs of something else before the porcelain and it didn't have the stink. I'll see if it happens again tomorrow when I cut something else. I wish I had a bigger piece of the stuff I only got a couple of slabs that looked like that.
Andrea
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Fossilman
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Post by Fossilman on Aug 5, 2017 8:21:08 GMT -5
Don't know the reason either,but on the other hand,that is killer material..
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Deleted
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Post by Deleted on Aug 5, 2017 10:37:57 GMT -5
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Deleted
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Post by Deleted on Aug 5, 2017 10:39:13 GMT -5
Andrea, cut a piece on a water saw and have a sniff. If it stinks like tar then it's from an area with tar. Do you know origin of this species?
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meviva
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Post by meviva on Aug 5, 2017 11:45:50 GMT -5
Andrea, cut a piece on a water saw and have a sniff. If it stinks like tar then it's from an area with tar. Do you know origin of this species? That's a good idea I will try that this afternoon. If you are asking where porcelain jasper comes from, I think it's Mexico. If you are asking where I got it so you can buy some for jeannie ...I got it from the t-rocks website in Quartzsite a couple of years ago.  Andrea |
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Deleted
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Post by Deleted on Aug 5, 2017 11:50:55 GMT -5
mevivaAndrea Thanks! I meant both. But there are more than one source of porcelain jasper. For instance one is found near bishop CA and I believe there is some in Arizona also.
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Deleted
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Post by Deleted on Aug 5, 2017 11:55:46 GMT -5
I, as well as others, have always preferred the original marketing name "Sci-Fi jasper" (Sonora Mexico) for the material in the photo above. That better distinguishes it from the category of "porcelain type" jaspers (e.g., Bruneau, Deschutes, Imperial, etc.). Should be able to more easily find pieces by searching on the "Sci Fi jasper" name.
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meviva
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Post by meviva on Aug 5, 2017 12:00:28 GMT -5
@shotgunner I looked on the t-rocks website that is where they say it's from. I also looked online for porcelain jasper from Mexico and it looks like the same stuff. Andrea |
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gemfeller
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Post by gemfeller on Aug 5, 2017 12:48:26 GMT -5
I, as well as others, have always preferred the original marketing name "Sci-Fi jasper" (Sonora Mexico) for the material in the photo above. That better distinguishes it from the category of "porcelain type" jaspers (e.g., Bruneau, Deschutes, Imperial, etc.). Should be able to more easily find pieces by searching on the "Sci Fi jasper" name. I agree. The material is also called Exotica Jasper. |
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Post by coloradocliff on Aug 5, 2017 13:10:03 GMT -5
I, as well as others, have always preferred the original marketing name "Sci-Fi jasper" (Sonora Mexico) for the material in the photo above. That better distinguishes it from the category of "porcelain type" jaspers (e.g., Bruneau, Deschutes, Imperial, etc.). Should be able to more easily find pieces by searching on the "Sci Fi jasper" name. Thank you for the reminder. Are there other materials called Porcelain besides what you listed ? |
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jeannie
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Post by jeannie on Aug 5, 2017 13:16:08 GMT -5
Why does porcelain jasper stink when you cut it? It's giving me a headache, it almost smells like tar. Andrea Wow! This is amazing! I need some of this stuff for sure!😛 |
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Deleted
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Post by Deleted on Aug 5, 2017 13:43:12 GMT -5
Are there other materials called Porcelain besides what you listed ? Willow Creek, Hart Mt. and morrisonite usually get onto the short list. The main characteristic is very high silicification that easily yields a mirror-like polish. Others that have been mentioned are: fryite, vistaite, tracenite, Rim (aka, "Bat Cave"), White Fir, mookaite, Mojave. You'll find less-silicified, more porous areas even in good pieces of any of these, but the old-timers got great results on them with nothing more than fine sanding followed by optical grade cerium polish. |
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vwfence
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Post by vwfence on Aug 5, 2017 13:54:52 GMT -5
I have some stuff that came from music mountain here in Az that smells like a sewer when you cut it which is a porceline type material also . I also have some turritella from wyo . which smells like hot tar when you work it
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meviva
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Post by meviva on Aug 5, 2017 13:55:49 GMT -5
Wow! This is amazing! I need some of this stuff for sure!😛 If you get some let me know it it smells like tar when you cut it.  |
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Post by coloradocliff on Aug 5, 2017 13:58:29 GMT -5
Are there other materials called Porcelain besides what you listed ? Willow Creek, Hart Mt. and morrisonite usually get onto the short list. The main characteristic is very high silicification that easily yields a mirror-like polish. Others that have been mentioned are: fryite, vistaite, tracenite, Rim (aka, "Bat Cave"), White Fir, mookaite, Mojave. You'll find less-silicified, more porous areas even in good pieces of any of these, but the old-timers got great results on them with nothing more than fine sanding followed by optical grade cerium polish. THANK YOU>. Will have to google several of these . You have an amazing mental library of lapidary art. More of a classification than a common name ?
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meviva
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Post by meviva on Aug 5, 2017 14:10:19 GMT -5
I have some stuff that came from music mountain here in Az that smells like a sewer when you cut it which is a porceline type material also . I also have some turritella from wyo . which smells like hot tar when you work it I'm glad someone else has experienced this. I have cut other thing that have a strong odor but nothing as strong a this. Andrea |
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Deleted
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Post by Deleted on Aug 5, 2017 14:21:45 GMT -5
More of a classification than a common name ? Yes. A half century (and longer) ago, most miners and cutters of jasper didn't have the fancy machines and fine diamond polishes that one can get now, so it was a useful way to describe the results one could expect using the simple equipment and media most had and could afford. Still works for me to describe the texture of very highly silicified jaspers (shatters and rings just like a porcelain vase or plate, too). |
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
