cummingtonite

Noun

Meaning

cummingtonite (countable and uncountable, plural cummingtonites)

(mineralogy) A mineral, magnesium-iron silicate hydroxide, (Mg,Fe)7Si8O22(OH)2.

Source: en.wiktionary.org

cummings Cummingsesque Cummington Cummins Cummiskey cummy