What are the brown lines on my maple jumbo?

maxr

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My blonde maple Guild has a variety of short darker brown lines running at right angles to the flame, in the neck and also on the laminated back - about 20-50mm long. I've noticed those on photos of other Guilds too. What is that - sap pockets, or something indigenous to that variety of maple? I tried to take a photo of them, but my phone exagerrates the flame and tones down the brown lines, it doesn't quite look as good as this to the eye :) Maybe this is some kind of automatic Beauty setting for guitars?

PSX_20230216_171358.jpg
 

GGJaguar

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Sometimes they are mineral deposits in the wood.
 

Cougar

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Yeah, gorgeous! I think that's the grain of the top layer. The question is, then what's the flame? :unsure:

Here's my JF30-12....

gjf358
 

maxr

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What a gorgeous guitar!!
Thanks - it's very nice, but not quite as highly figured as the photo suggests -somehow the figure look deeper here than it appears to the eye. I think this is one of those guitars that someone kept for a pet since they bought it (new?) in 1993. It has almost no playing wear, it had the original guarantee card in the original unblemished case, and the card of a 'retired' specialist guitar shop in New York State (where it was bought?). I'm told it was one of three Guilds (two sixes and this) on consignment sale in a regional guitar shop here in UK. Sadly, my guess is the owner wouldn't have parted from them easily.
 

SFIV1967

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My blonde maple Guild has a variety of short darker brown lines running at right angles to the flame, in the neck and also on the laminated back - about 20-50mm long. I've noticed those on photos of other Guilds too. What is that - sap pockets, or something indigenous to that variety of maple?
Chris @AcornHouse might have an explanation maybe.

Ralf
 

maxr

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Here are a couple of closeups, AcornHouse (second one closer than first of same area), and thanks:
 

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AcornHouse

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Yes, that’s a grain line as it reacted to some environmental factor during that particular year. I could probably go into my wood pile and find some similar bits of maple. Not mineral or bugs, maybe an excess of water for a period.
 

wileypickett

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Most of my maple Guilds have similar dark streaks here and there. I assume just a characteristic of maple.
 
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plaidseason

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Funny story, from when I still had my F30r-ls. One morning I looked inside the sound hole and had a minor panic attack. Cracks! And so that day on my lunch I brought it to a local luthier/builder. We walked down to his shop. He shined a light inside. "Those aren't cracks, those are mineral deposits in the rosewood."
 
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