But this may also be the one you were thinking about?
It was broken in two pieces in route. The freshly broken edges had great shimmer
but I couldn't make out any clear areas in the rock.
Pics 1 and 2 below.

I was very surprised to see the nice clear layers appearring as I ground into it
but it did not want to hold together and kept flaking apart.
The third pic below is where I stopped with that half.

The next 3 pics are of the other half partially exposed. I am going to slice it along the white line
you see running thru it in the last two pics.

Just what we needed. A good break!
It would take video, ie; movement, for me to show you the ardularesence in all these cabs,
so I'm not trying to, but if you don't mind the "stained" areas
I'd say we're on the way to having a set!
All we need is a good honker of a ring stone out of the best and last piece.

I ground the edges down for a better look.
Pic 2 is the best angle of refraction and I'm going to slice it lengthwise at the pencil mark
in the last pic to try and get two long elliptical cabs out of it.
It looks like real pretty material.

I'm not so sure about that, tim.
I'm not sure I've figured out a thing yet, but I think I'm getting closer.

This material is lots of fun to work and there are a lot of ways you can go about it.
It would help immensley if you had a big pile of rough to work with.
Besides for the first piece I was more or lesss trying to see how high grade a cab I could find.
There is definitely high grade material in this moonstone, but once you eliminate the fractures and iron stained areas
your cabs are going to be small-ish.
But there's still a lot of experimenting to be done...........
I think I got "close" on this cut, but then again you're trying to line up something that
shimmers shinneys and moves like a...............oh never mind.
Too bad there aren't any "do-overs" so you can compare other angles.
I'm real curious how this piece would have looked just cabbed down thru the layers as it was?
Anyway here's what left of the two pieces after roughing out.

Ooh and aah!  Hey at the very least this will help me shrug off the problems with the fracture planes.  The staining doesn't bother me -- it is what it is.

Hi guys,

Nice job, Joe and very interesting work.  I think the fractures/discolorations give each stone its own character - like with emeralds, the flaws are a part of their beauty.

My two cents.

cheers,
r

Joe - Nice work, and don't send them all back! Keep what you want.  I only "need" three:  one for the landowner, one for my dame, and one for the little boy who lives down the lane.  - Tim