potassic-arfvedsonite
A sodium amphibole mineral with the chemical formula [][Na₂][Fe₂₊₄Fe₃₊]Si₈O₂₂₂A sodium amphibole mineral with the chemical formula [(K,Na)][Na₂][Fe₂₊₄Fe₃₊]Si₈O₂₂(OH)₂.
Meaning
1 senses(uncountable)A sodium amphibole mineral with the chemical formula [(K,Na)][Na₂][Fe₂₊₄Fe₃₊]Si₈O₂₂(OH)₂.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable