Cordia rosewood

Ask your wood and other materials questions here. Please DO NOT post pictures and ask us to identify your wood, we have found that accurate ID is nearly impossible, and such discussions will be deleted. Thanks.
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John Willman
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Joined: Fri May 06, 2016 1:16 pm

Cordia rosewood

Post by John Willman »

I have some cordia rosewood, also known as Gamboge, which I bought for woodwinds. When the rec order joints are left for some time a grey powder develops on the surface and especially on the bore. I am not sure if it is a reaction to the linseed oil used, or quite what it is. Any observations would be welcome. Thanks.
John.

Randy Roberts
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Joined: Sat Jan 07, 2012 9:11 pm
Location: Omaha, NE (a suburb of Iowa)

Re: Cordia rosewood

Post by Randy Roberts »

John,

If you have access to or know someone with access, try getting a look under a microscope.
You brought back fond memories of a mystery the forum chased back when we were all much younger...

http://www.mimf.com/library/A_failed_at ... -2006.html

also:

http://www.mimf.com/library/What_to_do_ ... -2009.html

Bob Francis
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Re: Cordia rosewood

Post by Bob Francis »

That was an interesting thread.

my favorite Mr. Tweedy quote is :"I know what you mean, but the proof is in the hyphae. "

John Willman
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Joined: Fri May 06, 2016 1:16 pm

Re: Cordia rosewood

Post by John Willman »

Many thanks for leading me to the threads. I shall have to try ways of dealing with it, although it does take a long time to re-form when removed. It does look crystaline, and fits in with the second 2009 thread. I suppose the real worry is whether it is harmful in some way.
John

Chuck Tweedy
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Re: Cordia rosewood

Post by Chuck Tweedy »

OMG - I forgot how much good information we dug up in that paduk/fungus thread!!
I have nothing new to contribute to this thread - I can't believe that Bob called me "Mr. Tweedy" - Oye!
Likes to drink Rosewood Juice

Randy Roberts
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Location: Omaha, NE (a suburb of Iowa)

Re: Cordia rosewood

Post by Randy Roberts »

Mr. Tweedy, sir,

Do you remember what the final outcome of the "fishing for fungus" thread was?

I can't for the life of me remember what the punchline ended up being. Or did we even end up with an answer?

Chuck Tweedy
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Re: Cordia rosewood

Post by Chuck Tweedy »

Randy!
The outcome was, unfortunately, nothing more than was in that thread.
My contact at Diversa, my former employer, never completed any genetic analysis of the fungus. Also, I don't beleive that it grew on any "lab media" for him to examine any closer (microscope-wise) than what I could get from the wood itself.
He confirmed from the micrographs that we had that it was certainly a fungus.
I believe that it likely grows in very specific conditions on specific wood (paduk). I have no idea how it survived the conditions that Larry had treated the wood with - other than it could be a ubiquitous species. ¯\_(ツ)_/¯
Likes to drink Rosewood Juice

Randy Roberts
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Location: Omaha, NE (a suburb of Iowa)

Re: Cordia rosewood

Post by Randy Roberts »

Thanks Mr. Tweed, good to see you checking in.

Larry Davis
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Re: Cordia rosewood

Post by Larry Davis »

Hey, I'm still around, too :) Yes, that pesky fungus still giving me fits with Burmese padauk and Amboyna. Seems the darker the color the more vicious the attack. Never in sapwood and never in orange colors. Freezing the wood for a week helps some.
Larry Davis
Gallery Hardwoods

David King
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Re: Cordia rosewood

Post by David King »

Larry, do you see the same on vera? That's where I've been getting it but I really think it's more of a crystalline formation and the dust has a very strong odor of the citrus variety, same as the wood. I've read somewhere that vera takes a very long time to dry and can have an MC over 20% for years.

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Mark Swanson
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Re: Cordia rosewood

Post by Mark Swanson »

It's good to see ALL you guys!
  • Mark Swanson, guitarist, MIMForum Staff

Chuck Tweedy
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Re: Cordia rosewood

Post by Chuck Tweedy »

It's 106 miles to Chicago, we got a full tank of gas, half a pack of cigarettes, it's dark... and we're wearing sunglasses.
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Bryan Bear
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Re: Cordia rosewood

Post by Bryan Bear »

I'm glad I clicked this thread, it feel like old times.
PMoMC

Take care of your feet and your feet will take care of you.

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