Gemstones Like Kyanite
Dumortierite
Gemstone
4.42
Poor
Blue Sapphire
Gemstone
8.74
Great
Blue Spinel
Gemstone
7.91
Good
Benitoite
Gemstone
7.82
Good
Indicolite Tourmaline
Gemstone
7.45
Good
Sillimanite
Gemstone
6.42
Fair
Lapis Lazuli
Gemstone
6.21
Fair
Andalusite
Gemstone
5.98
Mediocre
Lazurite
Gemstone
5.80
Mediocre
Shattuckite
Gemstone
5.80
Mediocre
Zircon
Gemstone
5.75
Mediocre
Charoite
Gemstone
5.52
Mediocre
Scapolite
Gemstone
5.52
Mediocre
Larimar
Gemstone
5.34
Mediocre
Blue Topaz
Gemstone
5.06
Mediocre
Azurite
Gemstone
5.06
Mediocre
Celestite
Gemstone
4.88
Poor
Afghanite
Gemstone
4.60
Poor
Chalcedony
Gemstone
4.42
Poor
Gahnite
Gemstone
4.42
Poor
Epidote
Gemstone
4.42
Poor
Prehnite
Gemstone
4.19
Poor
Plancheite
Gemstone
4.14
Poor
Sodalite
Gemstone
3.86
Poor
