Author Topic: Rock blog  (Read 782 times)

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lithicbeads

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Rock blog
« on: February 21, 2013, 05:09:04 PM »
 this is an interesting blog with lots of rocks from the N.W. U.S. and a few from locations around the world.The page opens on variolites and more variolites may be found on the July 10 page at the bottom of the right sidebar.

http://topolith.blogspot.com/2011/08/mystery-solved-variolites.html

3rdRockFromTheFun

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Re: Rock blog
« Reply #1 on: February 21, 2013, 06:10:09 PM »
Wow, I recognize that rock! yes16

Cool link, thanks!
-frank-

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itsandbits1

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Re: Rock blog
« Reply #2 on: February 21, 2013, 08:56:57 PM »
I'm going to have to take a picture of my frogskin rock for you, bizarre looking types to say the least aren't they. I posted one in the orbicular section a while ago that drew me to it because it had these 1/4 inch bumps sticking out all over so I cut it and there are nice ringed white orbs inside black rock
The wheels of life go round and round, round and round, round and round, and then they hit a rock


lithicbeads

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Re: Rock blog
« Reply #3 on: February 22, 2013, 07:47:34 AM »
 Some of the variolites do get black with white spots but they seem to be a tiny percentage here. The most beautiful have a lively light green background color and citrus yellow dots and tubes. These I have only seen in the mountains and they are very rare.

itsandbits1

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Re: Rock blog
« Reply #4 on: February 22, 2013, 07:57:20 AM »
I googled the variolites and think there was an example of the green and yellow; quite a striking variation. I think my frogskin version has the same type of thing going on but for a different reason. I think it was a semi liquid mix when it formed in a seam and weathered/got ground out of the mountain.
The wheels of life go round and round, round and round, round and round, and then they hit a rock


itsandbits1

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Re: Rock blog
« Reply #5 on: February 22, 2013, 08:50:05 PM »
another couple of examples of this type that I have from my local collection are.
The wheels of life go round and round, round and round, round and round, and then they hit a rock


lithicbeads

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Re: Rock blog
« Reply #6 on: February 22, 2013, 09:16:56 PM »
If you ever cut them I'd love to see a wet slab.

itsandbits1

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Re: Rock blog
« Reply #7 on: February 22, 2013, 11:44:52 PM »
here's a picture of the cab I did of the small rock I did cut. They are a pretty subtle orb but there is banding and shading when you see it in hand. This is an old crappy picture from last summer. The stone is about 1 1/4 in long high dome cab.
The wheels of life go round and round, round and round, round and round, and then they hit a rock


Bentiron

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Re: Rock blog
« Reply #8 on: February 23, 2013, 04:24:54 PM »
That's a neat blog and I was just stunned by this one http://topolith.blogspot.com/2011/07/conveyor-belt.html what fun for old gimpy me this would be with my trash picker upper. I could pick up some pretty beach rocks ura12