See Also: smithsonite(medicine)
smithsonite(dictionary)

smithsonite (iou)



smithsonite noun. M19.
[from Smithson (see SMITHSONIAN) + -ITE1.]
Mineralogy. Orig., zinc silicate (hemimorphite). Now, zinc carbonate, an ore of zinc crystallizing in the rhombohedral system and occurring as yellowish, greyish, or greenish masses esp. associated with limestone. Cf. CALAMINE.