small reddish colored stone/crystal (?) pendant

I'm curious if someone here might recognize this enough to be able to shed a further clue exactly what it is?? I purchased it loose at a junk shop because I liked its shape and color, then added the black string and silver bead to it in order to add it to the small assortment of doo-dads hanging from my rearview mirror where its mostly been ever since. Then the other day I got to wondering if it might be something I should take slightly better care of...?? (maybe with a nice chain, and maybe kept with the jewelry instead?)

It is about 1-1/2" long and about 3/8" at its widest, made of a smooth polished reddish orange 'stone/rock-like' material with a gently tapered faceted "crystal" shape and pointed bottom end. It is somewhat translucent with a slight 'graining' to be seen within it, and there is a silver (I think) double-loop hanger affixed somehow to its flat top end.

I don't know what it is actually made of or if its shape is natural or manufactured -- nor do I really have any idea how old it could be -- I fully admit that jewelry/gemstones are *far* from my area of expertise. Can anybody help edjumucate me further, please??!!