bridgmanite

/brij-muh-nahyt/US // ˈbrɪdʒ məˌnaɪt //

桥石,桥墩石

Definitions

n.名词 noun

1
Mineralogy.
- : a magnesium-silicate mineral, MgSiO3, the most abundant mineral on earth, making up around 70 percent of the lower mantle.