kyanite
Kyanite is known as a gemstone that exhibits a beautiful blue color similar to sapphire.
Although it looks similar to sapphire, kyanite has two different hardnesses depending on the crystal plane.
In addition to blue, it exhibits various colors such as orange, gray, green, colorless, pink, and yellow.
Karatz GemMagazine
" Kyanite "
Karatz GemMagazine
" Kyanite "