Thanks for the reply. I'm quite familiar with the properties of
kyanite, having faceted a few for the challenge they provide. I just
did not connect the material with the mis-spelled original post.
I've seen a lot of replies here about kyanite and its properties,
etc. But I suspect most of these posts, like so many here, are
really second-hand (cut and paste, almost) from Google
and not personal observation. The green quartz thing seems to have
no end....just anecdotal conversation and offerings from folks who
are happy to "research" it.
Anyone who has actually worked with kyanite, either cutting it or
setting a few, would, I believe agree, from experience, that this
material does not belong in jewelry. Like sphalerite, it can be
quite beautiful, but does not really qualify as a gemstone if one
uses the classical definition of beauty, rarity and DURABILITY. As a
pretty object, it's fine, but I hope the suggestion is not going out
that these stones be set, as they will most likely get damaged in
the process. And that would be a shame, as crystals of kyanite clean
enough to facet a decent stone are not common, nor are successfully
faceted stones. Sort of like screwing up a good piece of wood...you
can always just chop down another tree, right?