Talk:Kyanite

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I am scheduled to give a talk on kyanite to some young children at our mineral club meeting. I am fascinated by kyanite (my favorite mineral). I collect it at the Prospect Park, PA site. I am trying to find some information about how kyanite is formed and especially why it is found embedded in quartz. If anyone can point me in the right direction I would be forever grateful!

Paul in Marietta

Kyanite is an aluminum silicate mineral that is typically formed under high pressure during the metamorphism of clay-rich (pelitic or argillaceous) rocks. Kyanite is also found in kimberlites, which are unusual intrusive rocks that contain diamonds.

My class is studing rocks and one of my favorite ones are the Kyanite is is very pretty and cool. It is a crystal and is see trough.

I changed the photo. I know it's not the best possible photo, but the one from USGOV didn't really look kyanite. I even would not have been able to tell it was kyanite unless I had read the title of the article... Aelwyn 17:31, 30 July 2006 (UTC)[reply]

I am from Nepal now working in Thailand and i am working in color stone, i am looking for a kyanite from NEPAL, but i didn't see any realted thing to nepal. usha

New to Wikipedia - Just wanted to point out that the article says it's hardness is 5.5 to 7, but the moh's hardness on the side states that it is 4.5-5, which doesn't include 5.5. I'm a newbie, so can someone fix that? — Preceding unsigned comment added by 98.154.129.29 (talk) 02:32, 1 October 2013 (UTC)[reply]

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what's all that fibrous "black kyanite"?

anyone? Fe-Chlorite maybe? Wikistallion (talk) 14:40, 20 September 2020 (UTC)[reply]

so, Aluminium has 2 Oxidation states in Silicate. saphir/kyanite (blue) and allophane (green). which ones? Wikistallion (talk) 14:46, 20 September 2020 (UTC)[reply]