It is not as sharp as I would like. I'll have to take more close up photos of the various areas. It looks to me like it once was a void that dark red agate formed in. That was caught in an ash flow tuff that stopped with a shattering event, but the shattered agate remained within an inch or so of each other. The penetrating ash crystallized into plumes, then agate filled most of the remaining spaces.
It is usually obvious if a stone grew from the center out, like a pearl, or from the exterior to the center as in "fortification agate, or from the bottom up as in "waterline agate."
Some of our understanding is clouded by "Old Scientist Tales."
Here is another puzzle in Morrisonite, NOT my slabs. Note something different happened to the bottom two examples from the shattered examples on top. All examples were taken from Googling "Morrisonite Images."
Cherche la verite
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
Post by Shotgunner on Nov 12, 2013 21:18:38 GMT -5
On further review of this image so kindly provided at my demand request
I see multiple events going on. Here is my take on it.
1) burgundy jasper forms 2) burgundy jasper brecciates 3) burgundy breccia is filled in with clear/white agate (can you see it?)
this is held together in some form of mud/clay/gel
4) mud/clay/gel is washed away and then agatized or simply agatized (I offer no opinion on which) probably yellow but maybe red 5) contrasting moss is grown and this solidifies the entire nugget 6) scott wants a 5" cube of this material
Shotgunner Excellent! I'm still puzzled by the wide "stream" that runs through the middle - the quarter is in the middle of it. Does event 6) point to some future event like a spherical development? How did you deduce that? Man, you are good!
Luckily we have the Bruno Jasper to help us understand what happened to some Morrisonite.
Bruno began as spheroids that were "popped open" by water expanding up to 2,000% into steam as cooling and contracting magma reduced the surrounding pressure. As cooling continued, the openings became vacuum chambers.
In other areas the spaces were produced by openings in ledge rock.
in both cases, the chambers were surrounded by highly silicious clay. Blobs of that material was injected into the chambers by repeated pulses by something like Old Faithful repeatedly pressurizing the groundwater.
snowmom: 57 degrees here last night 70 right now, mild wind from the nw, supposed to bring rain tonite, then days in the mid 70's until the weekend
Aug 18, 2014 16:21:41 GMT -5
bhiatt: I don't live all that far from the rioting. Around 20 miles. Getting crazy over there right now. Big crowd, tons of cops and reserves. Live action on the local news.
Aug 18, 2014 22:01:28 GMT -5
Fossilman: I'm sorry for a death of anyone,but that's not right,tearing up and looting your own town!!! The IDIOTS!! No logic at all!!
Aug 19, 2014 9:38:48 GMT -5
rockpickerforever: I understand a lot of the trouble is being caused by people from out of the area.
Aug 19, 2014 10:01:51 GMT -5
bhiatt: seen this morning a bunch of drug and gun arrests. One news guy was saying how it smelled of marijuana all over. Hate to say it but it will happen again tonight. A small percentage of ghetto thugs are the on trying to hype the crowd up. Bunch of bullchit.
Aug 19, 2014 11:54:10 GMT -5
wampidy: Too bad they can still have alcohol to turn themselves into real zombies. All weed does is make them mellow.
Aug 19, 2014 12:31:29 GMT -5
bhiatt: weed is the devil's drug.....kidding
Aug 19, 2014 12:48:42 GMT -5
PurplPixie: Alcohol is the worst, drunken zombies for sure
Aug 19, 2014 12:55:14 GMT -5
wampidy: I do not use either but I would much rather have a bunch of pot heads driving instead of drunks. All the pot heads do is slow you down and not kill you.
Aug 19, 2014 16:13:23 GMT -5
Fossilman: Sounds like the town might go belly up over this-hope not...
Aug 19, 2014 19:00:44 GMT -5
bhiatt: going to be a hot steamy night out there tonight. 90 something arrests last night. Lots of drug and gun charges. The main black cop that has been in the spot light said no protesting at night. I knew this was going to happen. The ghetto azzes come out...
Aug 19, 2014 19:13:27 GMT -5
bhiatt: at night stirring shit up trying to start a riot. A lot of out of towners coming in now.
Aug 19, 2014 19:14:16 GMT -5
Fossilman: Sounds like the 70's all over again....I remember that well...
Aug 19, 2014 21:13:01 GMT -5
bhiatt: they are out there again tonight. So far peaceful. Local news just started covering it. Last night it looked like a war zone by the end of the night.
Aug 19, 2014 21:24:21 GMT -5
rockinfoss: Hi ppl-pix. Lets talk about rough!
Aug 20, 2014 23:37:10 GMT -5
Fossilman: what kind of rough??? I have a good supple of it,can't wait for winter,so I can start cutting it...
Aug 21, 2014 8:40:29 GMT -5
bsky4463: Just back from a week long back country trip in the Bob Marshall Wilderness - epic.
Aug 21, 2014 8:54:24 GMT -5
Fossilman: What did ya' find,or was it just a camp trip?
Aug 21, 2014 14:06:24 GMT -5
bsky4463: Camping and fishing --- way too far back in to haul out rocks...
Aug 21, 2014 16:40:14 GMT -5
catmandewe: Good to talk to you today Andy, thanks for the call.
Aug 21, 2014 23:33:00 GMT -5