Anyone have a rock similar?

Can't get the camera to pick it up but it is purple and purple slurry. It's definitely not bbw and it's harder than any lorraine I have ever encountered. It also has banding and swirling all over the stone which pick up strongly in the light. Stone glitters in the light. No tactile difference in feel between the visual changes on the surfaces. Put up a mild fight to lap. If you put a drop of water on the surface and wipe it off after a time, the ghost of it flashes off the surface quickly.

https://youtu.be/brfsQfU7-6c

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Tried to get color to show up better

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A good method for color is to put the stone onto white paper, and draw a rainbow (or just marks of each color) in the frame. Then, if needed, you or the viewer or the photo can play with the image coloring until the marked colors look correct. Then again, it the rock hounds on here, your photos may be sufficient.

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One more

How did you acquire the stone? Do you know the area of origin?

it almost sounds like the purple/red part found in many CFs. Though, I've never seen one like this!

Yeah I bought this from Florida. Was in an ancient bit of wood. Not a cf. Idk what it is besides really interesting.

The colour reminds me of my Goldfisch hone. I have only seen smaller ones though and nothing that big. Perhaps compare some pictures with those on Razor Loves Stone
https://razorlovestones.wordpress.co...goldfisch_020/

Yes Rezdog I agree or "La Lorraine"

Not sure what it is other than what's already been guessed or perhaps an unidentified uncommon natural stone somebody just picked up and used, but I'm amazed that there's no difference in feedback between the shiny and dull areas - that's usually an indication that there's a pretty substantial difference in the binder in those areas - the shiny part holds on tight to the abrasive and the dull part is where the particles get more easily released. Interesting one again.

That banding is curious. I have a labelled Lorraine stone (no apparent relation to where I am located) that does not resemble it. Tendency with the latter in my example is towards white inclusions, and it is more porous. Although of a different color, I'm thinking more along the lines of a wood-grained or hybrid coticule here. Hybrid BBW?

Reminds me of a La Lorraine, but I'm not quite sure, there's some difference that makes me doubt that it is a Lorraine, the relief mostly

Btw, what's the use of a La Lorraine, is it a finishing stone?

Should have clarified... Just running your finger across no, a blade yes but it isn't giving off any random nastiness. The side where the swirling is almost like damascus it is so complex across the surface it almost feels like you are dragging the blade over a corrugated surface but it isn't doing harm. The other side it is more separated vs so enmeshed with each other. It's strange, it seems outright too hard to be a GW.

Lorraine? I have autoslurrying ones I use after the bevel set to delete scratches and pull to a point where I switch off to a slow cutting fine coti. I'm sure you can implement it different ways depending on how firm your example is. It is a really useful stone

Quote:

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Originally Posted by TristanLudlow

Btw, what's the use of a La Lorraine, is it a finishing stone?

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I sort of treat it like a fancy-pants BBW.

Here are some surface shots magnified. Going to slurry it with something harder than itself later for some tests to see how that is. I have no shortage of blades to test on it atm so I will see what's what.

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Quote:

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Originally Posted by Brontosaurus

I sort of treat it like a fancy-pants BBW.

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It has way more cutting power imo