haüyne Min.
(ˈhɑːwɪn)
[a. F. haüyne; named 1807 after the French mineralogist Haüy.]
A silicate of aluminium and sodium with calcium sulphate, occurring in certain igneous rocks in crystals or grains of various shades of blue or green.
| 1814 L. Gmelin (title) Some Account of the Mountains of Ancient Latium; in which the Mineral called Haüyne is found. 1869 Phillips Vesuv. x. 293 Haüyne, or Latialite, occurs..in cavities of gray micaceous or augitic lava. |