any of a group of silicate minerals of complex composition, containing boron, aluminum, etc., usually black but having various colored, transparent varieties used as gems.
更多tourmaline例句
The upgraded design features double the tourmaline ceramic technology to tackle frizz and add extra shine to your waves.
Though regular ionic dryers aren’t going to do you much good, tourmaline naturally creates negatively charged ions and subsequent heat.
A reddish granitic stone, composed of quartz, felspar, and tourmaline.
It is true, others before him had noted that substances like tourmaline possessed electrical properties.
He showed that the electricity of tourmaline decreases rapidly from the summits or poles toward the middle of the crystal.
Of these minerals, beryl, garnet and tourmaline are the most abundant.
The locket was made of tourmaline, which has mysterious properties.