Never rewet a dried fossil! - WHY?

Various fossil related discussions.
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0dinofthenorth
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Bericht door 0dinofthenorth » 21 dec 2010, 13:02

roab wrote:
0dinofthenorth schreef:
:o You are good!

Do you know any good ways of preserving Pyritised wood?
No i have never done anything with that so hopefully someone can give you a good tip on that.

I usually just try and hope for the best :p

(cant say that 'no fossiles where harmed in the proces' though)
What!!! Not every fossil made it!!!!!!!
I am in shock!!!:P
Gr,
Thomas.



 
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0dinofthenorth
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Bericht door 0dinofthenorth » 21 dec 2010, 13:07

ahuijsmans wrote:
I'm no expert but couldn't you use a vinegar solution to dissolve the lime remains?
Flint is pretty acid resistant....

Putting anything in a parrafine solution effectively blocks the influence of oxygen on the subject. If pyritised wood degenerates due to chemical reaction of oxygen on the pyrite then this would be a good solution...hypothetically..
Thanks, but my science teacher told me to do that, so we did it with half vinegar, half water, and it made them worse. Luckily we only tried it on the bottom half.
With the wood, I have been told to cover them with matt varnish, but I can't do anything with them at the moment, as I was told before to put them in water, and then coat them in varnish. My mum didn't want it indoors, so it is outside. It has snowed and it is all frozen solid at the moment. That is another problem.:P
Gr,
Thomas.



ROAB
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Lid geworden op: 20 okt 2010, 14:59
Antw: Never rewet a dried fossil! - WHY?

Bericht door ROAB » 21 dec 2010, 13:10

ahuijsmans schreef:
I'm no expert but couldn't you use a vinegar solution to dissolve the lime remains?
Flint is pretty acid resistant....
I did but it didnt clean up everything so i resorted to brute force ;)
ahuijsmans schreefPutting anything in a parrafine solution effectively blocks the influence of oxygen on the subject. If pyritised wood degenerates due to chemical reaction of oxygen on the pyrite then this would be a good solution...hypothetically..
Parrafine is great, i use it for everything now :p even smear it on my bread! Well no that's not true.

Note though that parrafine will give your fossile a darker color but on flint its impact is not so big.

If you look at my earlier post (linked above) then you will see a big ammonite that was very fragile, it was a problem to de-salt it and the clay on a lot of parts was still not hardened. I've also used parrafine on that one with great succes, it is much more stabile now and the color difference isnt to big either.

It not only locks out oxygen but also protects against water :) Ive placed a few pieces of clay from the ammonite fossile outside in the snow and frost to see if some small fossiles would come out (and they did) but also put out one piece with parrafine, all the clay dissolved except the one i sealed, it still sits in the snow keeping it's secrets locked inside.

So if you have a piece you can experiment on then i would give it a go with parafine.

[Bewerkt door ROAB op 21-12-2010 om 13:27 NL]



ROAB
Berichten: 47
Lid geworden op: 20 okt 2010, 14:59
Antw: Never rewet a dried fossil! - WHY?

Bericht door ROAB » 21 dec 2010, 13:15

0dinofthenorth schreef:
What!!! Not every fossil made it!!!!!!!
I am in shock!!!:P
Gr,
Thomas.
They call me the destroyer of fossiles, and most fossiles rightfully fear me ;)

Before i start working on a fossile i always show them the pieces that didnt cooperate with me to strike fear in their hearts. It may be cruel but it is effective.

[Bewerkt door ROAB op 21-12-2010 om 13:15 NL]



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0dinofthenorth
Berichten: 1114
Lid geworden op: 30 mei 2009, 00:18
Antw: Antw: Never rewet a dried fossil! - WHY?

Bericht door 0dinofthenorth » 21 dec 2010, 13:18

roab wrote:
0dinofthenorth schreef:
What!!! Not every fossil made it!!!!!!!
I am in shock!!!:P
Gr,
Thomas.
They call me the destroyer of fossiles, and most fossiles rightfully fear me ;)

Before i start working on a fossile i always show them the pieces that didnt cooperate with me to strike fear in their hearts. It may be cruel but it is effective.

[Bewerkt door ROAB op 21-12-2010 om 13:15 NL]
How do you treat them?

[Editted by 0dinofthenorth on 22-12-2010 at 12:33 GMT +1]



ROAB
Berichten: 47
Lid geworden op: 20 okt 2010, 14:59
Antw: Never rewet a dried fossil! - WHY?

Bericht door ROAB » 21 dec 2010, 13:32

0dinofthenorth schreef:
How do you treat them? It sounds like you are a mad scientist!
Scientist would indicate i have a clue to what i am doing, i dont, i just like torturing fossiles and sometimes it turns out right.

An other upside to parrafine is that the proces is reversible wich is always a good thing. I messed up one of the mineral pieces i did but simply put the thing in boiling water (i love torturing helpless stones) and it was all clean again :)

(The best science in any case is to research what others have done and simply try it out yourself)

[Bewerkt door ROAB op 21-12-2010 om 13:32 NL]



ROAB
Berichten: 47
Lid geworden op: 20 okt 2010, 14:59
Antw: Never rewet a dried fossil! - WHY?

Bericht door ROAB » 21 dec 2010, 13:44

0dinofthenorth schreef:
:o:o:o:o:o:o
I feel sorry for the stones! How many times out of 100 has it worked?
Gr,
Thomas.
90 i guess, most are so afraid that they wouldnt dare dissapoint me.

Most torture / experimenting is done on broken stones ;)



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0dinofthenorth
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Lid geworden op: 30 mei 2009, 00:18
Antw: Never rewet a dried fossil! - WHY?

Bericht door 0dinofthenorth » 21 dec 2010, 13:50

I have a sigh of relif! Stones are saved!
Can we see your collection?



ROAB
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Lid geworden op: 20 okt 2010, 14:59
Antw: Antw: Never rewet a dried fossil! - WHY?

Bericht door ROAB » 21 dec 2010, 14:31

0dinofthenorth schreef:
I have a sigh of relif! Stones are saved!
Can we see your collection?
There are some in the post i linked before and more need to be photographed stil, but december doesnt leave me with much spare time. And the bigger ones i havent dared to touch yet.



Gebruikersavatar
0dinofthenorth
Berichten: 1114
Lid geworden op: 30 mei 2009, 00:18
Antw: Antw: Antw: Never rewet a dried fossil! - WHY?

Bericht door 0dinofthenorth » 21 dec 2010, 15:32

roab wrote:
0dinofthenorth schreef:
I have a sigh of relif! Stones are saved!
Can we see your collection?
There are some in the post i linked before and more need to be photographed stil, but december doesnt leave me with much spare time. And the bigger ones i havent dared to touch yet.
What are the bigger ones of?




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