Tommy
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Member since January 2013
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Post by Tommy on May 30, 2013 22:19:45 GMT -5
No it's not Ocean jasper... I'm trying to confirm what this stuff is - the people at the rock sale I've been posting about said something to the effect of "rice rock" - another person there said he has some and it was a type of jasper that took a medium to high shine. Anyone familiar with this stuff? This rock being shown is about a 25 lb boulder. I didn't buy it but it's still available and I'm wondering if I should have.
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Post by deb193redux on May 30, 2013 22:44:24 GMT -5
well did they have polished examples? any sense of overall hardness? at least mohs 5? are the spots softer? what did they want per lb?
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Tommy
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Member since January 2013
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Post by Tommy on May 30, 2013 23:18:25 GMT -5
No I didn't see anything polished and I don't know the hardness. It's so unique I figure someone here might have some information on it. I've tried googling every variation of "green rice rock" and you can imagine the results hahaha.
Price is not an issue trust me - I think my last crate came in at about $0.20 per pound - I was just leery of dragging another 25 lb boulder home with no way of cutting it yet - and having it turn out to be a crap rock.
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Post by deb193redux on May 31, 2013 7:11:04 GMT -5
at that price, is would be fine as a yard rock. anyway, you can begin to block it into cuttable chunks with an angle grinder and/or drills and some chisels.
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Post by helens on Jun 1, 2013 0:52:54 GMT -5
Looks like something I saw a while ago called 'peanut rock', or 'peanut wood'... So I looked for that online, and it looks a little bit like this: www.highdesertlapidary.com/servlet/the-Fossils-dsh-Slabs-cln-Teredo-worm-wood,-peanut-wood/Categories If you look up peanut wood, the background colors are all over the place, and the directions of the cut spots, but it does look a bit like this.
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Post by deb193redux on Jun 1, 2013 7:42:11 GMT -5
helen both of those have worm burrows, and are clearly woods. these are inclusions or bits that crystallized out. not burrows, and the host rock is not wood.
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Post by helens on Jun 1, 2013 12:06:23 GMT -5
Hrm... how can you tell they are crystalized in the spots? They look like burrows to me...
but I agree the body doesn't look like wood. Looks a bit like the bog stuff, maybe slate. How odd.
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Post by deb193redux on Jun 1, 2013 12:12:50 GMT -5
LOL, burrows go somewhere. they are long and often cross each other. these are discrete and potato shaped. not burrows.
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Post by helens on Jun 1, 2013 13:08:23 GMT -5
How can you tell that they don't go anywhere from looking at one pix?!
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Post by deb193redux on Jun 1, 2013 13:22:29 GMT -5
while it could be a cross section of parallel burrows. it is not. I know the look. I can just tell.
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Deleted
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Post by Deleted on Jun 3, 2013 23:47:45 GMT -5
Just curious. Why can it not be ocean jasper?
In the AZ mtn's Tim took us too, we saw a "rock" that had similar spots. But green on a different background. Tim had cut some but only the spots polished.
Take a small piece and polish a window into it.
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Post by tandl on Jun 21, 2013 15:49:32 GMT -5
Greenstone basalt , frogskin jasper
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Tommy
Administrator
Member since January 2013
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Post by Tommy on Jun 21, 2013 16:20:44 GMT -5
Thanks, I’m open to all ideas but I don’t really see anything on Google images that would suggest it’s either one of those. The background is very solid and consistent colors, as are the lighter color dots. Maybe you can point me to it if you have a specific image to look at – or is this something you have personal experience with? The name I was told was “rice rock” but I can’t find anything on that name either.
I actually slabbed some my brother’s house last weekend and had completely forgotten about it till now (so many slabs, so little time…). I’ll get some polished up this weekend and give an update on how it went – I’m curious to see if what Scott suggested comes true and one color polishes better than the other.
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grizman
freely admits to licking rocks
Member since July 2011
Posts: 878
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Post by grizman on Jun 21, 2013 17:19:03 GMT -5
OK, for what it's worth. First off, I am just about as far off from being any kind of a rock expert as one can possibly be. I have collected something that is almost identical to that which you have shown. It was collected in the Bear Paw Mountains which are in north central Montana. I have a piece that is probably 175#'s in our flower garden. I also have a couple of smaller pieces scattered around our waterfalls and pond.
The thing that really made me notice the great similarity to my rock, is the slight brownish tint (almost like an iron oxide) on some of the edges. The color and spots are identical. I believe that at one time I was told it was a basalt....after I had told someone it was green granite. (giggle, giggle, what did I tell ya!)
So there you are. I have told you exactly...NOTHING. The only thing I can add to the mystery is that the same material can be found in the Bear Paw Mts of Montana!
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Post by tntmom on Jun 21, 2013 19:13:30 GMT -5
Tommy, I have a friend who is not a member here but reads the forum. He asked me if I would suggest Variolite and you should do a google search on it. They are found in areas where there are deposits of sea bed basalts.
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rykk
spending too much on rocks
Member since September 2011
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Post by rykk on Aug 18, 2013 0:54:12 GMT -5
I think it might be a variation of Plumeite, from China - though most of the specimens I've seen have a brown background/matrix and some of the spots are pink. Plumeite isn't very hard, though, and seems somewhat popous... C-ya, Rick
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Deleted
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Post by Deleted on Aug 18, 2013 13:09:12 GMT -5
Krystees friend is a very smart guy. Take him seriously!
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Post by jakesrocks on Aug 18, 2013 14:06:36 GMT -5
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Deleted
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Post by Deleted on Aug 18, 2013 14:57:09 GMT -5
Ha! Variolite - Nebula stone - Ha! This is very interesting.
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Post by tandl on Aug 23, 2013 20:47:26 GMT -5
plumite,plumeite,variolite,nebula stone,o yea,also frogskin jasper....=trade names , all basalt .
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