vwfence
has rocks in the head
Member since January 2013
Posts: 567
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Post by vwfence on Aug 5, 2017 15:13:38 GMT -5
Meviva do you ever get up to the Kingman area ?
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meviva
Cave Dweller 
Member since July 2013
Posts: 1,474 
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Post by meviva on Aug 5, 2017 15:31:14 GMT -5
vwfence Not really. Just pass through when going to Laughlin or Vegas which isn't often. Andrea
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Walker
starting to shine!
Member since July 2017
Posts: 31
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Post by Walker on Aug 5, 2017 18:07:30 GMT -5
It may be a stinker but it's sure pretty!
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Post by orrum on Aug 5, 2017 18:50:28 GMT -5
Wiley Wells not far from the thunderegg area has a mountain with veine of porcelain all over it.
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Post by aDave on Aug 5, 2017 19:20:11 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. I just realized why I'll never be an identifier of rocks. You lost me at Willow Creek.  To me, this is like learning to speak Russian. I'll never get there. Congrats to folks like you that spit this out like it's an everyday occurrence. Dave |
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Post by spiceman on Aug 5, 2017 19:46:45 GMT -5
I don't know if it's the reason but I smelled a odor when I was cutting
Different types of glass rocks
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Aug 5, 2017 22:00:49 GMT -5
To me, this is like learning to speak Russian. I'll never get there. Yeah, sorry about that. Terminology of microcrystalline/cryptocrystalline quartzes is a mess (yes, 2 terms for the same thing, with some who still can't/won't even agree on a name for the entire subgroup of quartz that includes jaspers and agates  ) Most older, long-used jasper and agate names refer to material that comes from a certain location, just like we have moss typeagate from places like Maury Mt., Wingate Pass, and dozens of other locations. Similarly, porcelain type jaspers also come from named locations: thus we have Bruneau (Owyhee County, Idaho), Deschutes (Sherman County, Oregon), Willow Creek (Ada County, Idaho), Hart Mt. (Lake County, Oregon), morrisonite (Malheur County, Oregon) fryite (Asotin County, Washington and Nez Perce Co. Idaho), vistaite (Crook County, Oregon), tracenite (Lake County, Oregon), Rim (aka, "Bat Cave," Crook County, Oregon), White Fir (Crook County, Oregon), mookaite (Carnarvon, Western Australia), Mojave (Mohave County, Arizona). Basing jasper names should be workable, but then we have things like Sci-Fi jasper that have similar-to-identical material dug from the same location being marketed under a variety names (Exotica, Santa Fe, Mayan, Porcelain, and who knows what other names will be coming next). "Porcelain" adds a layer of confusion, and that's not to even mention that there is already also "porcellanite" = a variety of chert, which is a grainy material that doesn't always polish that well (texture more like unglazed porcelain). My doddering old brain reels, too, and it's not been getting any simpler over the years. |
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Post by aDave on Aug 5, 2017 23:14:24 GMT -5
To me, this is like learning to speak Russian. I'll never get there. Yeah, sorry about that. Terminology of microcrystalline/cryptocrystalline quartzes is a mess (yes, 2 terms for the same thing, with some who still can't/won't even agree on a name for the entire subgroup of quartz that includes jaspers and agates ) Most older, long-used jasper and agate names refer to material that comes from a certain location, just like we have moss typeagate from places like Maury Mt., Wingate Pass, and dozens of other locations. Similarly, porcelain type jaspers also come from named locations: thus we have Bruneau (Owyhee County, Idaho), Deschutes (Sherman County, Oregon), Willow Creek (Ada County, Idaho), Hart Mt. (Lake County, Oregon), morrisonite (Malheur County, Oregon) fryite (Asotin County, Washington and Nez Perce Co. Idaho), vistaite (Crook County, Oregon), tracenite (Lake County, Oregon), Rim (aka, "Bat Cave," Crook County, Oregon), White Fir (Crook County, Oregon), mookaite (Carnarvon, Western Australia), Mojave (Mohave County, Arizona). Basing jasper names should be workable, but then we have things like Sci-Fi jasper that have similar-to-identical material dug from the same location being marketed under a variety names (Exotica, Santa Fe, Mayan, Porcelain, and who knows what other names will be coming next). "Porcelain" adds a layer of confusion, and that's not to even mention that there is already also "porcellanite" = a variety of chert, which is a grainy material that doesn't always polish that well (texture more like unglazed porcelain). My doddering old brain reels, too, and it's not been getting any simpler over the years. Please, don't apologize. That was not the intention of my post. Quite frankly, I am truly impressed with knowledge such as yours and others. I'll never get there. You have probably forgotten more about rocks than I will ever know. That's a compliment...a sincere one. I am truly impressed with what folks like you bring to the table. I'll just never grasp it. Best regards. Dave |
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Post by coloradocliff on Aug 6, 2017 1:36:55 GMT -5
To me, this is like learning to speak Russian. I'll never get there. Yeah, sorry about that. Terminology of microcrystalline/cryptocrystalline quartzes is a mess (yes, 2 terms for the same thing, with some who still can't/won't even agree on a name for the entire subgroup of quartz that includes jaspers and agates ) Most older, long-used jasper and agate names refer to material that comes from a certain location, just like we have moss typeagate from places like Maury Mt., Wingate Pass, and dozens of other locations. Similarly, porcelain type jaspers also come from named locations: thus we have Bruneau (Owyhee County, Idaho), Deschutes (Sherman County, Oregon), Willow Creek (Ada County, Idaho), Hart Mt. (Lake County, Oregon), morrisonite (Malheur County, Oregon) fryite (Asotin County, Washington and Nez Perce Co. Idaho), vistaite (Crook County, Oregon), tracenite (Lake County, Oregon), Rim (aka, "Bat Cave," Crook County, Oregon), White Fir (Crook County, Oregon), mookaite (Carnarvon, Western Australia), Mojave (Mohave County, Arizona). Basing jasper names should be workable, but then we have things like Sci-Fi jasper that have similar-to-identical material dug from the same location being marketed under a variety names (Exotica, Santa Fe, Mayan, Porcelain, and who knows what other names will be coming next). "Porcelain" adds a layer of confusion, and that's not to even mention that there is already also "porcellanite" = a variety of chert, which is a grainy material that doesn't always polish that well (texture more like unglazed porcelain). My doddering old brain reels, too, and it's not been getting any simpler over the years. Knocked it out of the park again. Thank you. It makes me work harder to learn many things and like Dave said, we really appreciate and want the wisdom of your experience. |
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Post by Garage Rocker on Aug 6, 2017 7:14:13 GMT -5
Timely, aDave, you should have just received a really small piece of that. Tumble fodder. |
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Post by Rockoonz on Aug 6, 2017 8:54:53 GMT -5
aDave I'm blessed to be married to a woman who has a geological mind, she's still learning, but what she learns she remembers. The list of porcelain jaspers led me to a small search that ultimately humbled me big time in the area of lapidary skills. If I get permission to share what I found it'll knock everyone's socks off.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Aug 6, 2017 10:25:48 GMT -5
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Post by pghram on Aug 7, 2017 19:01:51 GMT -5
Amazing pattern!
Peace,
Rich
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
