Osage should also have a leachable yellow dye. Pernambuco should have deep red and some of these species (called bluewood) have a leachable blue dye even though they are red. Padouk has an oil based dye which can discolour lighter wood beside it while sanding.
Logwood Burl
- Thread starter Mike Hill
- Start date
Yes, but only your DNA would turn purple. Haematoxylin is still one of the most important stains in medical microscopy, because it binds to DNA and lets you see cell nuclei clearly. The pathologist who looks at biopsy specimens to see if they're cancerous or not will probably slice them very thinly and stain the thin slices with haematoxylin. And haematoxylin is still commercially extracted from logwood; it's not economical to synthesize it.
Every now and then, my day job comes in handy on this forum. . .
- Thread Starter Thread Starter
- #23
Ain't getting my pernambuco to make dye out of!!
- Thread Starter Thread Starter
- #24
Come to PaPa!
Your hands will turn purple if you sweat while you're turning or sanding it. Lime juice takes it right off but it's a strong purple color. It grows in S. Florida but it's not very common.
Here are photos after cutting a square off the end. I'd understand if you decide to pass because of the voids.
How does its Color hold up? That looks. Even redder than fresh padouk. (Which in my opinion is hard to beat)
My logwood samples' sapwood match David's sapwood spot on. Both my burl sample and common grain sample are far more 'golden brown' for heartwood. Under blacklight, my burl sample's sapwood reacts a florescent greenish yellow. Nothing for the sapwood on the common grained sample. The heartwood in both have a very faint purple glow.
It's all the fault of an 18th century Swedish doctor with an overinflated ego. He's the guy who came up with the convention of two-part Latin names, and now we're stuck with it. (At least he had fun with it -- his friends got pretty flowers named in their honor, while his adversaries got weeds.) Still, ya gotta have some stable system for referring to species. Diospyros crassiflora, Dalbergia melanoxylon, and Ebenopsis ebano have all been called "ebony" at some point -- yet they are quite different species, and that makes a difference in price, availability, and conservation efforts. So we're stuck with 'em for now.I HATES Latin names...
really gorgeous!
Linnaes' system is actually well thought out and works fine. The problems arise from people using common, local names
Mike, PM me your mailing address and I'll get the logwood out tomorrow. I'll fill out the box with some Texas ebony and huisache if you have any interest in these species.
Many people are interested in Texas ebony. If you have some good sizes you might be getting many private messages soon.
- Thread Starter Thread Starter
- #35
Got a box of purdy reddish wood today. Beautiful wood and the protective pieces ain't bad either. Wish I knew what they are! Thank you very much David!
Texas ebony and huisache. Both are hard as heck.
- Thread Starter Thread Starter
- #37
Thought it was Texas ebony, but had no idea of the huisache! Many thanks! What is the name of the orange flowered bush I was seeing down there last month when I was looking after Dad? I've asked the question before, but cannot remember the name.
Me too !