1) Manganese mineral 2) Triclinic mineral
Found on
https://www.crosswordclues.com/clue/pyroxferroite
Pyroxferroite (Fe2+,Ca)SiO3 is a single chain inosilicate. It is mostly composed of iron, silicon and oxygen, with smaller fractions of calcium and several other metals. Together with armalcolite and tranquillityite, it is one of the three minerals which were discovered on the Moon. It was then found in Lunar and Martian meteorites as well as a mi...
Found on
http://en.wikipedia.org/wiki/Pyroxferroite
No exact match found.
