jamesp
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Post by jamesp on Feb 22, 2014 18:25:31 GMT -5
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panamark
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Post by panamark on Feb 22, 2014 18:48:17 GMT -5
Oh my gosh, I want that 2nd one. It is incredible James!! What percentage have such good definition? And does the whole piece have it, or is it like petwood where it fades out later in the piece?
Those are really something!
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jamesp
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Post by jamesp on Feb 22, 2014 20:08:23 GMT -5
Oh my gosh, I want that 2nd one. It is incredible James!! What percentage have such good definition? And does the whole piece have it, or is it like petwood where it fades out later in the piece? Those are really something! Thanks Mark. Yes that pattern is more common on the exposed side. However i do find material that has corallites thru out. Nothing like Indonesian coral though.
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miander
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Post by miander on Feb 22, 2014 22:19:34 GMT -5
James - those are spectacular! That coral is so varied and the colors so different, each one is its own treasure!
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Post by pghram on Feb 22, 2014 22:51:36 GMT -5
Agreed, that second one is magnificant.
Rich
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quartz
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Post by quartz on Feb 22, 2014 23:11:08 GMT -5
Looks like you've got that macro working pretty well, like 'em. Larry
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jamesp
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Post by jamesp on Feb 23, 2014 0:17:11 GMT -5
Thanks for the comments you guys. The right equipment helps. The old Vivitar macro is an old 35mm film lens that fits on the old digital D70 Nikon. I think it was $60 on Ebay. And old film lenses are a dime a dozen. That is one benefit of those D series Nikons. I had to shot those in manual. But it is best to shoot with the highest f stop on the lense which was f16. Then your only adjustment is the shutter speed which will be low and require a rigid camera mount or tripod.
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Post by rockpickerforever on Feb 23, 2014 0:54:04 GMT -5
Nice corals, nice macros!
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grayfingers
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Post by grayfingers on Feb 23, 2014 8:27:12 GMT -5
wow, love seeing them so crisp and clear. I was wondering, if you know whether the corals you find are mostly the same species?
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jamesp
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Post by jamesp on Feb 23, 2014 10:40:29 GMT -5
wow, love seeing them so crisp and clear. I was wondering, if you know whether the corals you find are mostly the same species? I am a bit challenged on that subject. Look at the bottom of the photos on this link Bill. And you will see coral psuedomrphs named 'Scleractina'. Those look exactly like the solid corals i find(same corallites). And those psuedos are only found in my hounding territories. So dang it, i am finding Scleractina. I find ID of coral treacherous. Well, the Univ. of Florida has this bad a$$ site. If you go to the link you will see a rich fossil world. Add that site to your favorites. I am thinking you would like it. Actually, i always use this site to ID fossils because it is local and it is absolutely thorough. Florida corals: www.flmnh.ufl.edu/invertpaleo/gallery.asp?gallery=Florida%20CnidariaNow, from a more laymen's approach. I find coral varying size corallites. Some the size of a pin head and up to 1/2" diameter. Most are 1/4". And different corallite structures-but they all look like Montastrea. A prized coral is called pinhead coral. It works great,it is high grade and often clear and heats to rich colors. This is not my find but a great slab of it. It does not make sense to me since the tubes are always wavy like spaghetti and seem inefficient to carry light.
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jamesp
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Post by jamesp on Feb 23, 2014 10:52:12 GMT -5
This is scleractina coral. sclera = hard in latin. This type of coral is noted for it's rock hard skeletons. This is a good example from Israel and a good Wiki link on this coral. A lot of people think it is Montastrea. I guess Univ of Fl. knows best. This coral is noted for calcium carbonate compostion in the form of Aragonite. And perhaps living to 20,000 feet. All in Wiki... en.wikipedia.org/wiki/Scleractinia
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jamesp
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Post by jamesp on Feb 23, 2014 11:45:42 GMT -5
I may be wrong Bill. This subject may need to be addressed by Master of Biology Mel. Look at the breakdown of categories for the genus Montastraea . I n this case Scleractinia is the order and Montastraea is the genus and the species is Annularis. Phylum: CNIDARIA Class: ANTHOZOA Order: SCLERACTINIA Family: FAVIIDAE Genus: MONTASTRAEA Species: ANNULARIS Species Authority: ELLIS,J. & SOLANDER,D.C. Parenthesis: Yes Authority Date: 1786 Nature of Specimen: FIGURED (CORALLUM) Period: PALEOGENE-NEOGENE Epoch: OLIGOCENE,LATE-MIOCENE,EARLY Group: HAWTHORN GROUP Formation: ARCADIA FORMATION, TAMPA MEMBER County: HILLSBOROUGH COUNTY Previous Catalog Number: TSM-4A And this is the description of the coral i find: Phylum: CNIDARIA Class: ANTHOZOA Order: SCLERACTINIA Genus: 46 Parenthesis: No Nature of Specimen: CORALLUM (CUT IN TWO AND POLISHED) Period: PALEOGENE-NEOGENE Epoch: OLIGOCENE,LATE-MIOCENE,EARLY Group: HAWTHORN GROUP So they are calling the genus - 46 So i can tell you the phylum,class and order.....
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tkvancil
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Post by tkvancil on Feb 23, 2014 15:02:08 GMT -5
The second and third gotta be my favorites although some of the others only lost out by a hair. Those are all really cool shots. Some of them would make great wallpaper.
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jamesp
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Post by jamesp on Feb 23, 2014 18:09:49 GMT -5
Thanks tk. The coral looks cool under magnification. The detail of fossilization is great. But with a naked eye the details are hard to see.
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carloscinco
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Post by carloscinco on Feb 23, 2014 19:47:48 GMT -5
Thanks for the optical infusion, beautiful stuff!
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jamesp
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Post by jamesp on Feb 23, 2014 20:59:30 GMT -5
Thanks for the optical infusion, beautiful stuff! I am the Infuser Carlos.
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grayfingers
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Post by grayfingers on Feb 24, 2014 8:31:58 GMT -5
James, thanks for the links and info. Wow, that is a nice site at UFL. Looks like there are a lot of corals. . . The shapes you have shown do seem like the Scleractinia. Found this, "A contribution to the geologic history of the Floridian plateau, by Thomas Wayland Vaughan". Written in 1910, but some nifty info. biodiversitylibrary.org/item/53779#page/21/mode/1up
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jamesp
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Post by jamesp on Feb 24, 2014 9:50:37 GMT -5
James, thanks for the links and info. Wow, that is a nice site at UFL. Looks like there are a lot of corals. . . The shapes you have shown do seem like the Scleractinia. Found this, Read more: forum.rocktumblinghobby.com/thread/64465/macros-coral?page=2#ixzz2uFd7flHcTonight i will study this link. I already like it because it used the word plateau in the title. First time i have seen such a description. And that it in my mind is my hounding area, a plateau. I knew you highlanders would set us Floridians straight. Yes, that UFL site is great.
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grayfingers
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Post by grayfingers on Feb 24, 2014 10:30:27 GMT -5
Starting on page 147, found some nice maps and info on N Florida.
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Fossilman
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Post by Fossilman on Feb 24, 2014 11:33:20 GMT -5
Totally cool!!!
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