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| I just recently found (again--I'd lost track of it. . .) An abstract of a paper by Dr. Grahame Brown of Queensland, Australia, detailing his findings concerning small, solid pearls discovered by Lou Hill of Wellington, NZ in masses found within the shell wall of Haliotis Iris. Some of them are discrete and some are found as aggregate clusters. In this case, the pearls seem to all be associated with infestations of polychaete worms while the ones I have found don't seem, so far, to be associated directly with any parasites. http://www.abalonepearls.co.nz/images/pearlpaper.pdf I found this link refered to in Lou Hill's site: http://www.abalonepearls.co.nz/home.html Marc http://www.flyrodjewelry.com/home.html |
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| Since I was going out to snap some quick photos of a couple odd shells this evening, I grabbed the shell with the amazing double solid (I think) blister. I haven't done anything with it yet but I had to show it off. It measures about 12mm X 7.5mm and is beautiful. Interestingly, it happened to form (or deposit?) right on top of an old blister apparrently formed by a toredo clam that was later "released" by other parasites eating away the outside of the shell that held it in place. (It's tough to be an abalone these days! ) The first shot is what I saw when I first peeked in under the lip of the shell. The next shot is the best close up I could get without cutting the shell apart. Pretty, yes? The third picture is of one more possible solid pearl in the same shell--also right on an old large blister. Looks a bit weathered, though. --More to follow-- Marc http://www.flyrodjewelry.com/home.html |
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| Wow! Those are fabulous!! The ones that formed right in the muscle scar are really interesting. They may be much like the pearls that formed in the muscle scar that New Zealand Natural Pearl showed us a while back. Do you think that they are solid pearls? Did that shell come from New Zealand? Thanks for showing--they're beautiful! Marc http://www.flyrodjewelry.com/home.html |
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Nozomi |
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| Here's an oddball abalone shell that I received recently. It's not a crab leg, but it seems that an abalone will try to cover whatever encroaches on it! Another year or two down the line would have been interesting to see...Marc Http://www.flyrodjewelry.com/home.html |
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Oh yes--of course--there is a good example in the second picture that HopePaua posted. . . Again--beautiful! Marc http://www.flyrodjewelry.com/home.html Last edited by J Marcus; 07-18-2008 at 08:08 AM. Reason: Further thoughts |
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| Ah! Caught it just in time! Just as it was about to slip away to page 2! There was a ridge, about 62mm long, in one of my shells. It looks as though the abalone squeezed together part of the inside of the shell and it formed a protruding fold. (Pix 1, 2 % 3) I thought that it might be somehow similar to the "wing pearls" that NZNP posted earlier. I cut it out and began to grind off the back, expecting to find nothing more than empty space, conchiolin and perhaps the remains of a parasite in the middle. I was using a very aggressive wheel and ground through the back and a layer of conchiolin and then about one mm into another layer of shell. (ouch!)(fourth photo) What I found didn't make a lot of sense at first so I carefully scraped out some of the conchiolin and realized that what I had seemed to possibly be an imbedded pearl! (last photo) It is a very odd shape and I began to think that it enclosed something on the order of a small fish or other creature. However, it didn't have any obvious separation from the shell on one side. I took it down to a friendly local dentist and got his assistant to X-ray it. It's interior is a puzzle at best. No fish that I could find and some very odd forms internally. The X-ray is too dark to scan so will try to photo it with light coming through it later. There is a suture line that seems to separate part of it from the other--can't tell to what extent, yet. I figured out that the side that doesn't seem to have a separation from the shell forms a sort of flange that is sandwiched between the inside and outside shell layers and I cut through it in cutting the whole thing out of the shell. It's kind of like it was a bit of pastry dough that was squeezed out and them squeezed down and stretched out thin on one side. Go figure. . . I'm not sure what to do with it at this point. I'll have to give it careful thought. The inside pearl (?) measures about 60mm in length. |
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| Hi Mark I have been reading Edwin Streeter's Pearls and the Pearling Life (1886 or so) . In the early chapters there is a section where he explains that the shell is created from the inside and moves out as new layers are laid down. New layers cover blisters until they are on the outside because the outside gets worn away. Thus he says, blisters will eventually get buried in nacre and finally reach the outside of the shell. Abalone was the example he used. Now, quite a few of his other explanations are outdated, but I thought this was interesting. What do you all think? Or know?
__________________ Caitlin potamilus purpuratus American Pearl Mussel Where can I get a pearl from this mussel? |
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| Caitlin: Absolutely, that is true. See my post above on the double attached solids. They are almost dead center on top of an old blister that was eaten away on the outside until the toredo clam fell out and was being covered from the inside when it was harvested. I see this phonemenon all the time when working with the shells. Marc http://www.flyrodjewelry.com/home/html Last edited by J Marcus; 08-17-2008 at 03:04 AM. Reason: spelling |
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| Wow! I love some of the colours and shapes you can create. I only wish I was able to do something similar! I've been plodding along myself and picking up a bit of a collection, still haven't got the knack of getting great looking photos, but I've attached one for viewing - sorry it's a little dark so you don't get the foll colour effects. I hope you enjoy it as much as I do... now what to do with it.. back to the shed ![]() |
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| I've been promising X-Rays of some of my "nodules" so here's the start of it. This first one is the single nodule that I posted earlier. It turns out that dental X-Rays work very well for this purpose. In fact one can see--especially in the close up--the coencentric layers on this pearl. I've heightened the contrast a bit to show the layers a little better. ------------------- Marc http://www.flyrodjewelry.com/home.html Last edited by J Marcus; 09-02-2008 at 09:04 AM. Reason: spelling, further thoughts |
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