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Author Topic: Guide to jasper and agate types  (Read 2041 times)
rocks2dust
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Blue Mt. jasp


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« on: August 31, 2010, 03:54:33 AM »

A rock club in S. California is compiling photos of the jaspers and agates of N. America. They are a series of .pdf files which you can keep on your computer or print out (if you have a color printer) for future reference. Might be useful for identification, though it isn't complete and they say it will be updated. Here are the links so far...

Vol. 1: Utah and Colorado
http://www.4shared.com/document/mNXTQALM/Agate_Index_Vol_1__2nd_ed_.html

Vol. 2: Wyoming and Montana
http://www.4shared.com/file/224404408/51585e57/Agate_Index_Vol_2.html

Vol. 3: Idaho and Washington
http://www.4shared.com/file/229956030/cc07189f/Agate_Index_Vol_3.html

Vol 4:South Dakota, Nebraska, and Oklahoma
http://www.4shared.com/file/242786005/91b2476f/Agate_Index_Vol_4.html

Vol 5: Texas
http://www.4shared.com/document/oCLei3tU/Agate_Index_Vol_5.html

Vol 6: The South - Mississippi, Louisiana, Alabama, Florida, Georgia, Arkansas, Missouri
http://www.4shared.com/document/nXCjumab/Agate_Index_Vol_6.html

Vol 7: Arizona
http://www.4shared.com/document/XplaNpW1/Agate_Index_Vol_7.html

Vol 8: New Mexico and Nevada
http://www.4shared.com/document/_pQZhI8C/Agate_Index_Vol_8.html

Vol 9: Oregon
http://www.4shared.com/document/-CARc_SR/Agate_Index_Vol_9.html
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gingerkid
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« Reply #1 on: August 31, 2010, 04:06:05 AM »

 8)very cool, us of a agates!! have you downloaded the database yet, astynax?? lol, i asked in the chalcedony/jasper/agate post if anyone had downloaded the database yet.  and it's free!!! Tongue Grin
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rocks2dust
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« Reply #2 on: August 31, 2010, 04:17:28 AM »

I've downloaded most of it. I hate the timeouts the host makes you wait before downloading, but I guess for free I cannot complain. So far, nice pics in the 2 I've looked at thus far.
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gingerkid
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« Reply #3 on: September 01, 2010, 02:08:44 AM »

I've downloaded most of it. I hate the timeouts the host makes you wait before downloading, but I guess for free I cannot complain.

 Grin countdown before download??  a couple were 75 seconds countdown??? never seen that before, but, like you said it's free!! Tongue  cool pics, you say?? Grin

almost missed the portfolio by steve haynes on lakers and other agates from the north. lol, let the countdown begin.... Tongue
« Last Edit: September 01, 2010, 02:21:39 AM by gingerkid » Logged

rascalita
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« Reply #4 on: October 23, 2010, 11:18:25 PM »

I was looking at the agates of Texas and I saw a picture of petrified wood from La Grange. I went to La Grange a few months back and a friend found what she told me was petrified wood. I'll try to remember to take some pictures of it tomorrow.
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« Reply #5 on: October 28, 2010, 02:30:14 PM »

 Grin look forward to your pics, rascalita!!! wish that there were agates to be found in lagrange, georgia. Sad
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« Reply #6 on: October 29, 2010, 09:47:44 PM »

Shoot, I forgot about the pictures LOL! I'll take them tomorrow  Cheesy
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« Reply #7 on: October 30, 2010, 09:02:25 PM »

OK, this is the piece I was told is petrified wood:



I found these others at the same shooting range in La Grange, TX.

The next three pics are of the same rock. It reminds me of salmon.







This one reminds me of a piece of meat.



And here's the rest. Of course, I don't know what they are, but they caught my attention.









The last two are of the same rock.



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rocks2dust
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« Reply #8 on: October 30, 2010, 11:22:50 PM »

The first looks more like rhyolite to me (Wonderstone, Hickoryite, etc.). The bands look too wide for petrified wood or agate. Could also be some sort of flow stone (try testing with acid).

That one piece does look like a piece of beef  Cheesy
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« Reply #9 on: November 01, 2010, 06:22:24 AM »

 Cool nice finds, rascal!!! Cool lol, before enlarging the 3rd pic, i thought "pot roast," but it looks more like ham when the pic is enlarged. Cool Wink

what's "flow stone??"  Smiley
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rocks2dust
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« Reply #10 on: November 02, 2010, 05:16:15 AM »

what's "flow stone??"  Smiley


That's stone which forms from layers of water-deposited minerals. There is flowstone around the famous formations at Pamukkale and Yellowstone. Cave floors and walls often have flowstone deposits, as do travertine and dolostone deposits around hot springs.
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« Reply #11 on: November 02, 2010, 08:56:10 AM »

I'll do the acid test, Asty, and thanks for the question, Ginger. I didn't know it either  Wink
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