tephroite (English, noun)
expansion: tephroite (countable and uncountable, plural tephroites)
Senses:
topics: chemistry
geography
geology
mineralogy
natural-sciences
physical-sciences
glosses: An orthorhombic-dipyramidal mineral containing manganese, oxygen, and silicon.
tags: countable
uncountable
Forms:
form: tephroites
tags: plural