Kyanite

Hi Guys,
The specimen in question was in an old wooden box with about 30 others, all were very gemmy crystals and written on the box in pencil was Thomas mine, this is how I came to think this piece was from Thomas, I'll delete the location, I'm sure that Keith is spot on :)


Thanks!!

KOR
Everett

Rock,

This deposit (Borisovskie Sopki) was found at the end of 19th century. Now it is developed only by mineral collectors and consists of several open pits. The largest crystals from this deposit were 20 cm long. I saw crystals with dimensions of about 15 x 3 x 1 cm. Kyanite crystals have inclusions of quartz, mica, rutile, and tourmaline. Gem material is rare.

Igor

Rock,

Thanks. I'll think about it. I am in the midst of moving my household from one end of the state to another, so I can't promise anything soon.

Keith

Perhaps some of the other specimens in the box were from the Thomas mine. Attach a few pictures to a reply and we can all have a look.

Hi David:

I will be able to correct most of the Brazilian kyanite localities; I am in Tucson now, finishing to sort minerals that I will be bringining to Denver, so I cannot make the corrections now; on the next few days, as soon as I can, I will send you my comments.

Luiz

Keith,
All the specimens look just like the one I posted, sericite/feldspar mix, there are a lot of loose crystals, none that I can recall off the top of my head that were termed.


Thanks!!!!
E