PROTOENSTATITE

Meaning of PROTOENSTATITE in English

a variety of the silicate mineral enstatite (q.v.). Protoenstatite is stable only at high temperatures.

Britannica English vocabulary. Английский словарь Британика. 2012

PROTOENSTATITE — “+ noun Etymology: German protoenstatit, from prot- + enstatit enstatite : an unstable product of the decomposition of talc by …
Webster's New International English Dictionary
ENSTATITE — common silicate mineral in the pyroxene family. It is the stable form of magnesium silicate (MgSiO3, often with up to …
Britannica English vocabulary