noun
ulexite; TV rock
A mineral (hydrated sodium calcium borate) known for its fiber-optic property of transmitting images through its fibers, hence the nickname 'TV rock'.
ウレキサイトは繊維状の結晶で、光を伝える性質がある。
Ulexite is a fibrous crystal that has the property of transmitting light.
この標本はウレキサイトで、テレビ石とも呼ばれる。
This specimen is ulexite, also called TV rock.