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    Very sad news. Caitlin was a nurturer of passion...

    Very sad news. Caitlin was a nurturer of passion for so many here (from one who undoubtedly tested her patience at times). The 'consequential' subtitle for those early Ruckuses takes on new meaning...
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    Sun has been extremely shy here in Seattle! ...

    Sun has been extremely shy here in Seattle!

    50937
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    Sarah, what a great endorsement! A reason for my...

    Sarah, what a great endorsement! A reason for my linking the poe pipi ring in my prior post was precisely to contrast with this "less is more" approach. This one will not become a tie accessory!
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    Thanks, flattening is a good suggestion and this...

    Thanks, flattening is a good suggestion and this has been done for us with THIS ring that was also spinning on my finger. (Not a ring wearer, it subsequently became a wonderful tie accessory). We...
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    The pearl is secured exclusively by the...

    The pearl is secured exclusively by the claw/prongs. At least that was our instruction. It is not drilled, in fact there is a small hole in the middle of the cup exposing the bottom of the pearl...
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    I have the sneaking suspicion it was Octavia.

    I have the sneaking suspicion it was Octavia.
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    Tridacna pearls, atypical of the bivalve family,...

    Tridacna pearls, atypical of the bivalve family, are similar to gastropod pearls (Conch) in being composed of aragonite with a microstructure known as 'crossed-lamellar' that is much lower in...
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    I returned to PG on Sunday to post our new Kima...

    I returned to PG on Sunday to post our new Kima (Tridacna) ring, and noticed Blair's very recent posting of this brooch as 'pearl of the week.' Now I see it is a thread—kind of spooky! My ears must...
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    Great to hear from old—and new—friends! Thanks...

    Great to hear from old—and new—friends! Thanks for concurrence, yes it's all about the pearl, 18K was also essential, not only for the rich tones but to balance the weight of the gem. The ring is...
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    Well it took over six years, but this beauty is...

    Well it took over six years, but this beauty is now a ring! I sat down with the jeweler and explained the special qualities of non-nacreous pearls. We settled on a simple bi-color design, 18K Rose...
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    Sticky: The putative Nautilus pearls in this thread could...

    The putative Nautilus pearls in this thread could never become ammolite, which is petrified nacre. That said, just think if a nacreous pearl could be transformed as was this hefty chunk of ammonite...
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    Sticky: Nacre from an annelid sounded odd to me so I took...

    Nacre from an annelid sounded odd to me so I took a quick look and was impressed to learn of Serpulidae's use of organic sheets and aragonite ? la nacre. However it seems that the similarities to...
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    Sticky: Good idea, it also occurred to me but I've gotten...

    Good idea, it also occurred to me but I've gotten a bit out of practice…


    Actually Nautilus is unique among mollusks in producing nacre of both the columnar (gastropoda, predominant at the...
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    The Nautilus dilemma remains acute. While GIA...

    The Nautilus dilemma remains acute. While GIA might defend its certificates based on known anomalies in other nacreous mollusks such as Pinctada, practically every putative Nautilus pearl in history...
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    As 'originator' of poe pipi at Pearl-Guide I'll...

    As 'originator' of poe pipi at Pearl-Guide I'll assume the right to just one more diversion here. Hadn't intended to post anything further on Nautilus without further news. My post above is simply to...
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    Dear Mr. Dave TT, How many would you like? ...

    Dear Mr. Dave TT,

    How many would you like?


    ?


    Seriously, please re-read the Nautilus thread. There you will find no proof of the typicity or existence of Nautilus pearls. The thread was...
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    Bo Torrey (how is Bo these days?) once told me in...

    Bo Torrey (how is Bo these days?) once told me in his inimitable way that pipi meat is delicious but annoyingly crunchy?his predominant memory from a pearl-spitting oyster feed on a beach in Manihiki...
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    Needed to find the long-buried paper and review....

    Needed to find the long-buried paper and review. P. Maculata was determined to be basal (earliest) in the Pinctada clade (branch) that includes all the smaller shells with toothed hinges (includes...
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    A beauty, South Sea can't touch it. P. Maculata...

    A beauty, South Sea can't touch it. P. Maculata is the true Mother of Oriental Pearls as the progenitor species to the Persian Gulf's P. Radiata.

    At a time when I was paying close attention to...
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    Dr. de Baets, Your well-publicized article...

    Dr. de Baets,

    Your well-publicized article received early attention here (LINK) as it related to a lengthy and rather obsessive study of mine concerning the mystique-shrouded myths and legends...
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    Just to clarify, my understanding is that...

    Just to clarify, my understanding is that Pectinidae inner shell microstructure is foliated calcite (vs. foliated aragonite, thus far only confirmed in Monoplacophora). Also, did I read something...
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    Lolo, Very nice photos, they look good enough...

    Lolo,

    Very nice photos, they look good enough to eat.

    Among your collection of shells, if you have managed to keep any of those showing color tendencies in the blue/green/red ranges that would...
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    Dave, Indisputable documentation for a...

    Dave,

    Indisputable documentation for a non-nacreous pearl from a nacreous shell. Significant find indeed! Coloration would speak to the proteomics of the species.

    But begs further comment on...
  24. The two specimens here do indicate that a...

    The two specimens here do indicate that a lobster-concretion 'typicity' exists, as they are so similar. Composition requires analysis, chitin most likely but calcification in the form of aragonite or...
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    Excellent photos, the loupe shots are especially...

    Excellent photos, the loupe shots are especially accomplished.

    There is certainly an exterior shell crack at the last septum as I described in my prior post, indicating Indonesian origin, as this...
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