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According to info in the post from Steve Pfeiffer (in the link I posted above) the Case Moon Stone and Moon Stick are ceramic. May be why it falls between the soft and hard Arkansas stones.Modern Slip Joints wrote: ↑Tue Jan 14, 2020 11:59 am I bought a Case Moon Stone in the late 1960s. I'm not sure if it's still with some of my other stones or not. I remember it being about the same grit as a hard Arkansas stone but larger than the small hard Arkansas stones Case sold at the time. The small Case hard Arkansas stone I bought back then would be called a translucent stone today. It is unusually fine for a hard Arkansas stone. It feels like a piece of smooth glass. I guess that was just luck of the draw. My moon stone fell in between the common Case 5 1/4" soft Arkansas stones and that unusually fine hard Arkansas stone.
Thats it. I remember now first bouhght a that small stone first and the description as called a translucent stone is right on. I gave this to my sis-inlaw to sharpen her dental hygene instriments. A blade must be very sharp to benefit from this stone.Modern Slip Joints wrote: ↑Tue Jan 14, 2020 11:59 am I bought a Case Moon Stone in the late 1960s. I'm not sure if it's still with some of my other stones or not. I remember it being about the same grit as a hard Arkansas stone but larger than the small hard Arkansas stones Case sold at the time. The small Case hard Arkansas stone I bought back then would be called a translucent stone today. It is unusually fine for a hard Arkansas stone. It feels like a piece of smooth glass. I guess that was just luck of the draw. My moon stone fell in between the common Case 5 1/4" soft Arkansas stones and that unusually fine hard Arkansas stone.
It is definetly a finer grit then a hard Arkansas oil stone. I have two of them. I never thought what the Moon Stone was made of but ceramic makes sense.hardman wrote: ↑Wed Jan 15, 2020 2:26 am I bought a Case Moon Stone (definitely ceramic) in the late 1970's or early 1980's right out of a Case floor display. And I still use it. And I use the honing oil I bought with it which is light blue in color. I really like that stone for small to medium sized blades. This is just my opinion, but I think it is a somewhat finer "grit" than a Hard Arkansas Stone. But maybe that is because my large Hard Arkansas Stone is more gritty than others. I think the Case Moon Stone nicely polishes the edge.