Definition of lacroixite
: 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)
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Origin and Etymology of lacroixite
French, from F. A. Alfred Lacroix †1948 French mineralogist + French -ite
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