Author Topic: Conchoidal fracture (bruise) on Greta Vase  (Read 3690 times)

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Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #10 on: November 08, 2005, 09:41:15 AM »
Cathy thats not a favour at all
Height is 20cm, width is 30cm
Reeds in frosted section =5
Pete


Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #11 on: November 16, 2005, 03:30:38 PM »
New pic with the aid of a magnifying glass
Not very good but the best I can do ...
It measures about 1cm across
(http://glassgallery.yobunny.org.uk/albums/userpics/10006/PB131222.JPG)
and Im now thinking its a "bruise" but still not sure.......
Pete


Connie

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Conchoidal fracture (bruise) on Greta Vase
« Reply #12 on: November 17, 2005, 02:48:30 AM »
FWIW  - It looks like a bruise to me.


Offline Frank

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Conchoidal fracture (bruise) on Greta Vase
« Reply #13 on: November 17, 2005, 06:05:12 AM »
Seconded
Frank A.
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Offline Ivo

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Conchoidal fracture (bruise) on Greta Vase
« Reply #14 on: November 17, 2005, 08:06:41 AM »
"Three independent forensic experts have confirmed"....
Ivo
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Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #15 on: November 17, 2005, 10:59:16 AM »
Thank yopu all
The striations can only be seen under magnification - otherwise it just looks frosty - which is what threw me off.
It seems odd that a knock can do this without cracking the surface. Just another of the many mysteries of glass !
Pete


Offline Frank

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Conchoidal fracture (bruise) on Greta Vase
« Reply #16 on: November 17, 2005, 07:19:55 PM »
Not really, the ripples are a shock wave.
Frank A.
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Offline KevinH

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Conchoidal fracture (bruise) on Greta Vase
« Reply #17 on: November 17, 2005, 08:44:09 PM »
... and "sub-surface bruises" are often seen in the sides of paperweights.
KevinH


Offline aa

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Conchoidal fracture (bruise) on Greta Vase
« Reply #18 on: November 18, 2005, 06:27:35 PM »
I believe the correct term is conchoidal fracture :D
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Offline pamela

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Conchoidal fracture (bruise) on Greta Vase
« Reply #19 on: November 18, 2005, 06:39:37 PM »
aa: great post - I LOVE languages and this is reading it square:
conch - Muschel (the most expensive pearls by the way)
bruise - break: Bruch
conchoidal - muschelig
everyone understands German this way - mother of pearl breaks
'muschelig'
Pamela
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