Main index --- Minerals list --- Other Minerals index Kyanite
Derivation:From "kyanos" (Greek) blue
Formula: Al2SiO5
Description: Blue bladed crystals

Kyanite is able to withstand high temperatures. It is used for porcelains, high-temperature bricks and spark plugs.

Kyanite is also called Disthene (Greek for two strength) because it has different hardnesses in different directions.

Larger pictures of Kyanite:

Single crystals

Kyanite Kyanite


A jumble of crystals