Oamaru II

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rnabholz
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Oamaru II

#1 Post by rnabholz » Thu Oct 25, 2018 1:44 am

More from Oamaru New Zealand Fossil sample.

American Optical Series 4 Apostar, 90x Apo, Oblique Mask, Canon 70D, Stacks using Zerene Stacker PMax Routine
Pyxilla 74µm
Pyxilla 74µm
Oamaru 0204 ZS PMax Finalx.jpg (62.67 KiB) Viewed 4601 times
70µm
70µm
Oamaru 0229 ZS PMax Finalx.jpg (79.03 KiB) Viewed 4601 times
62µm
62µm
Oamaru 0246 ZS PMax Finalx.jpg (64.43 KiB) Viewed 4601 times

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zzffnn
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Re: Oamaru II

#2 Post by zzffnn » Thu Oct 25, 2018 1:50 am

Fascinating! Nice work, Rod!
Last edited by zzffnn on Thu Oct 25, 2018 2:00 pm, edited 1 time in total.

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rnabholz
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Re: Oamaru II

#3 Post by rnabholz » Thu Oct 25, 2018 3:22 am

zzffnn wrote:Fascinating! Nice work, Rod!
Thanks zz

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75RR
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Re: Oamaru II

#4 Post by 75RR » Thu Oct 25, 2018 6:27 am

you are spoiling us rnabholz - very nice!
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rnabholz
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Re: Oamaru II

#5 Post by rnabholz » Thu Oct 25, 2018 1:49 pm

Very kind 75, thank you.

MicroBob
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Re: Oamaru II

#6 Post by MicroBob » Thu Oct 25, 2018 8:06 pm

Hi Rod,
thank you for sharing your Oamaru beauties!
No. 1 is probably Pyxilla johnsoniana.
No. 3 doesn't look like a diatom to me, but I'm far away from being a diatom expert.
It might be a sponge spicule.

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rnabholz
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Re: Oamaru II

#7 Post by rnabholz » Thu Oct 25, 2018 11:01 pm

Hi Bob,

Glad you like them, there will be more to come.

We are in agreement on your IDs. That spicule really grabbed my attention. I think it was about a 50 image stack to capture its depth.

The second one is playing mind games with me, I see it as convex, look away and back and it is concave. Goofy.

Thanks for the interest.

Rod

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KurtM
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Re: Oamaru II

#8 Post by KurtM » Fri Oct 26, 2018 12:26 am

If I were you, I'd hang lights on that last one and use it for a holiday decoration. 8-)
Cheers,
Kurt Maurer
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rnabholz
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Re: Oamaru II

#9 Post by rnabholz » Fri Oct 26, 2018 2:36 am

KurtM wrote:If I were you, I'd hang lights on that last one and use it for a holiday decoration. 8-)
Might need a micromanipulator to put the star on top.

MicroBob
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Re: Oamaru II

#10 Post by MicroBob » Fri Oct 26, 2018 6:06 am

If it is a sponge spicule it must have been quite an effort for the sponge to develop it. The spicules I have found in diatom material or sand samples were much simpler in shape. It would be interesting to know the reason for this difference.

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