La Lune Special Stone...Anybody got one?

[Wid]

Picked up this vintage La Lune from Griffith.

 

[Eshebert]

Pick the La Lune out the lineup? Side by side comparison if La Lune vs Vermont slate. The slate was a construction site cast off. I have now compared these 3 on slurry, water, glycerin and oil. Can’t tell the difference between the stones under a microscope. Can’t tell the differences in edge performance, if I had to pick one I would say the roof tile gives slightly keener edge under oil. I have seen enough to believe they are the same stone.

 

[Shaun asleep]

Woah, they look very much alike. The middle one is probably La Lune? Going by the green spots, but thats quite the resemblence.

 

[Wid]

Pick the La Lune out the lineup? Side by side comparison if La Lune vs Vermont slate. The slate was a construction site cast off. I have now compared these 3 on slurry, water, glycerin and oil. Can’t tell the difference between the stones under a microscope. Can’t tell the differences in edge performance, if I had to pick one I would say the roof tile gives slightly keener edge under oil. I have seen enough to believe they are the same stone.
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I know which is which