来自MSN1 个月
World's rarest gemstone: What it looks like and its cost
The rarest gemstone in the world is considered to be ... For example, jadeite is the hardest natural mineral, and painite is the second-rarest mineral in the world. The rarest mineral in the ...
This is the world’s rarest mineral. It was only found once
Gemstone seekers in Chaung Gyi Village unearthed the tiny reddish-orange crystal, which later caught the eye of a gemologist.