I bought an entire batch of these, they were labeled Ruby in Kyanite, they do however have another matieral in them that is a light dreamy green, if guessing say possible zoisite, but its almost too light. I'm not sure though!
Each one has great deep blue color and is absolutely covered in ruby, when put under a black light they almost completely glow! Even under normal lighting they have amazing sparkle covering and looks like a glitter surface in several areas!
I love each of these and its hard choosing a favorite!