mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 19, 2011 8:58:42 GMT -5
Nicely done!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 19, 2011 8:58:15 GMT -5
You've got me by 2 pounds! Nice setup!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 17, 2011 17:31:45 GMT -5
Yup, you can certainly knap jasper into arrowheads and other tools. Some will work just fine in its natural state and others will need to be heated to about 500 degrees before it can be worked. What kind of jasper do you have? I'm a knapper and I can heat-treat if you want I can fix you up.
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 16, 2011 10:49:22 GMT -5
I really like the gold and bronze look! Very nice :-)
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 15, 2011 8:29:03 GMT -5
Nicest yard rock ever!
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 14, 2011 8:32:13 GMT -5
Wow! I have seen Lake Superior Agates before but, most of those pictured are really amazing! Thank you for sharing and I'm looking forward to the next installments!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 11, 2011 7:56:05 GMT -5
It looks like a Grano-diorite with hornblende (black crystals) to me. If you look at a QAP diagram for Plutonic rock you can compare the amounts of feldspar to plagioclase to get a more exact ID.
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 11, 2011 7:33:42 GMT -5
That is a crazy scary saw! I want one!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 11, 2011 7:19:20 GMT -5
I like the interplay between the lines and the overall shape of the Howardite cab!
Nice work! Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 9, 2011 14:41:29 GMT -5
Thanks for the good words everyone!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 9, 2011 8:38:37 GMT -5
Hi All, I've been into lapidary since age 12 but, with school, work and moving often it has been tough to get organized and setup. So, I've finally got all my equipment where I want it and I've found the time to get back to it. This is my first cab in many many moons! It is Montana Agate (30mm X 21mm) and polished on both faces. I have a bunch more ready to polish but, I wanted to share my first one with ya'll. Being on the board for the past few weeks has rekindled my passion for lapidary Thanks for looking, Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 8, 2011 8:16:32 GMT -5
Looks like Novaculite to me but, you are long ways a way from Arkansas. Hummm, perhaps it's a chert... the one photo shows the right fracture. Have you checked on your local geology maps to see what kind of formation you are at?
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 8, 2011 8:12:07 GMT -5
Flint Ridge can be knapped in slab form but, it has to be heat treated first. Most knappers will slab it about an inch thick so it can be percussion flaked; rarely do you get a piece that is good enough to only pressure flake (this would be a 1/4 thick slab). Here is a link to Roy Miller's YouTube, he shows you everything from start to finish at Flint Ridge. www.youtube.com/user/RoyMillerFlintRidge click on all video to see the heat treating tutorial. Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 8, 2011 8:07:23 GMT -5
wow, I aspire to be that good someday! That opal is awesome!
Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 7, 2011 7:14:53 GMT -5
Stunning photos and exceptional stonework! Thanks for sharing.
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 7, 2011 7:12:46 GMT -5
Hi Allen, I've been knapping for about 20 years. The best resource out there is still a experienced flintknapper; if you can find someone local to help you learn it can takes years and tons off the curve. Flintknappers have "knap-ins" where we all get together over a weekend and knap, trade, buy, sell, and breath knapping. The events for 2012 are not posted on the Internet yet but, if you visit www.flintknappers.com/events.php in a few months they should have some up. In the meantime, check out www.youtube.com/user/paleomanjim; Jim Winn has the best video tutorial on knapping and it's free. Also, join KRU on Yahoo Groups and check out PaleoPlanet too. Tons of good info, lots of helpful knappers and interesting archaeology. Good chipping, Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 5, 2011 10:54:27 GMT -5
I'm a big fan of banded slate too! I make replicas of Native American artifacts from it :-)
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 4, 2011 10:02:13 GMT -5
Looks like you are doing good with your knapping. Time and Tonnage!
Good chipping, Michael
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 3, 2011 15:05:12 GMT -5
Lots of Crinoid pieces, very cool!
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 358
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Post by mjflinty on Nov 2, 2011 16:15:42 GMT -5
The bubblegum agates are pretty! I think I found something similar in Hatch NM, I thought they were agatized coral at the time but, perhaps they are agates. I'll have to take some photos and post.
Michael
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