thranite
/ˈθrænaɪt/Definitions
1. noun
A thranite is an archaic or rare term referring to a type of gemstone, possibly a variant of the word ‘thranite’ is also related to a specific type of blue or violet-colored gemstone, possibly a sapphire or a lapis lazuli.
“The ancient collection of precious stones included a thranite, prized for its vibrant purple hue.”