lacroixite

noun

la·​croix·​ite

ləˈkrwäˌzīt

plural -s

: a mineral approximately Na(Ca,Mn)AlPO₄(OH)₃ that consists of a basic phosphate of aluminum, calcium, manganese, and sodium often containing fluorine and that occurs in pale yellowish green crystals (hardness 4.1)

Word History

Etymology

French, from F. A. Alfred Lacroix †1948 French mineralogist + French -ite

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now