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Lapidary / Gemstone Community Forum
January 16, 2019, 05:07:05 pm
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help pls for petrified opal wood

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Author Topic: help pls for petrified opal wood  (Read 270 times)
dede
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« on: February 25, 2016, 12:06:37 pm »

hi All

i am very new in this world and try to learn as much as I can from you masters and friends.today i bought some opal wood around 20 kg  from turkey ,I looked in internet but couldnt find any blue petrified opal wood,could you share your view please.
I would like to make cabs with these.
regards
ali


* 12053261_1049322861798610_1424307818_n.jpg (30.63 KB, 467x623 - viewed 4 times.)

* 12769606_1049322675131962_997811197_n.jpg (92.71 KB, 467x623 - viewed 11 times.)

* 12767317_1050229901707906_884910015_n.jpg (50.31 KB, 467x623 - viewed 5 times.)
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lithicbeads
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« Reply #1 on: February 25, 2016, 12:34:12 pm »

The color of the opalized wood does not alter how you cut it but the attributes of each source of wood you cut can alter treatment. The huge petrified logs in the pacific northwest are common opal also and typically very easy to cut and polish but I would not go out of my way to get it too hot. Crazing and brittleness can be  a problem with opalized wood as of course can be it's risk of being overheated and cracking or crazing.
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dede
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« Reply #2 on: February 25, 2016, 12:39:36 pm »

thanks lithicbeads,

is it same when you cut slabs ? or it is more importatnt during cabbing?
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« Reply #3 on: February 25, 2016, 02:50:14 pm »

Hi dede

I would take the slabbing a little more careful. Depending on the saw blade being used and feed pressure being used can cause bigger problems with fractures.

Love the pics and wish I had some of that material to play with.

Bless
Shawn
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jakesrocks
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« Reply #4 on: February 25, 2016, 05:44:48 pm »

Common as well as precious opal can be unstable. It may cut & polish beautifully, but after a year or so may start cracking for no apparent reason. Hopefully the material you have is stable & won't do this. I have a few chunks of Pacific NW opalized wood that I've left outside through several winters of freeze/thaw cycles. So far no cracking, so this spring I may slab it up.
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light house jack
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« Reply #5 on: February 25, 2016, 06:43:22 pm »

Can you please share who was the seller of this material? I would love to have some of the blue material. Thanks.
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dede
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« Reply #6 on: February 25, 2016, 10:21:57 pm »

Thanks to all

@ light house jack,those opal woods bought one from one of my farming relatives .I am working in Azerbaijan at the moment and will be back to home end of the March ,i will try all my best to give more information.
I ordered a saw machine,I hope I will get it when I will go home and try to make some slaps and will post here.
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