Thread: First natural hone: dark and light green oil stone

You need to be slow on heating up and cooling down this stone. They are prone to micro-cracking/flaking

Originally Posted by adrspach

You need to be slow on heating up and cooling down this stone. They are prone to micro-cracking/flaking

so as far as slowly cooling, just letting it air cool after taking it out of the oven it should be slow enough right? I'd had to mess up this stone just trying to get it out of the box.

Air cooling is ok just dont throw it outside if you live in Alska

Thanks a million adrspach, I really appreciate all the help! I'll post more pictures of the sides/bottom when it's free.

Last question, will my DMT be a good choice for lapping this stone? I've read many people using glass or granite with sandpaper to lap these finishing stones. Is that just so they get a good polish on them (i.e. higher than the 325 grit of the diamond plate)? What is your usual method for lapping natural finishers?

I would not touch this hone with any DMT higher than 220. You risking that the hone will take your diamonds off.

Originally Posted by adrspach

I would not touch this hone with any DMT higher than 220. You risking that the hone will take your diamonds off.

I have seen this happen with a Charnley, it is extremely funny as long as it is not your DMT.

Originally Posted by nun2sharp

I have seen this happen with a Charnley, it is extremely funny as long as it is not your DMT.

yea, so hysterical, even my wallet laughed at me!

Originally Posted by Magpie

yea, so hysterical, even my wallet laughed at me!

Did it have an empty smile?

a cavernous grin too

I have one of these and I love it. I believe it is what is knows as a Grecian. It's not very hard and isn't a finishing stone but is just great to use for setting a bevel where not much work is required or before finishing stone of choice. In my experience slurry should be raised with a fine diamond plate or hard slurry stone. Feedback is great, it cuts fast and seems to degrade slurry with use providing a very reasonable edge to finish off on finishing stone of choice. The stone may be influenced by the grit of the surface used to raise a slurry before the slurry starts to degrade, so I use a fine diamond surface to raise slurry. This is my favourite stone before a finishing stone and very under rated imo. Hope you enjoy it like I enjoy mine. I've used mine before finishing on a Thuri and a coticule and got sublime results by my standards every time. I've never had problems with diamonds being removed lapping this stone as it's really quite soft and not like other stones that come from where this is rumoured to come from.