Min. [Named by Sandberger, 1881, f. LEUCO- + Gr. χαλκ-ός brass: see -ITE.] Arsenate of copper, often found in silky white needles.
1883. Dana, Min., App. iii. 69. Ibid. (1892), 837. Leucochalcite … occurs as a delicate coating with malachite.
