Min. Occas. chalko-. Stem and combining form of Gr. χαλκός copper, brass, used in the names of many minerals, as Chalcocite [Dana’s alteration of the older name chalcosine (see below)], native sulphide of copper, copper glance. Chalcodite [named 1851; f. Gr. χαλκώδ-ης like copper + -ITE], a hydrous silicate of iron, found in velvety coatings, having a brass-like luster, a variety of stilpnomelane. Chalcolite [see -LITE], a synonym for Forbernite, which was erroneously supposed to be an ore of copper. Chalcomenite [Gr. μήνη the moon; named with reference to selenite, f. σελήνη moon], a copper selenite from S. America. Chalcophacite [Gr. φακός lentil], a synonym for Liroconite, a native arseniate of copper, occurring in small lentil-shaped crystals. Chalcophanite [Gr. φαν- appearing, showing], a hydrous oxide of zinc and manganese, having sometimes a bronze-like luster. Chalcophyllite [Gr. φύλλον leaf: named 1847], a green, foliated arseniate of copper. Chalcopyrrhotite [named 1870], a variety of PYRRHOTITE, a sulphide of iron and copper, resembling chalcopyrite. Chalcosiderite [Gr. σίδηρος iron], a hydrous phosphate of copper and iron, a variety of Dufrenite. Chalcosine [badly formed on Gr. χαλκός + -INE.], earlier name of chalcocite (see above). Chalcostibite [Gr. στίβι (στίμμι), sulphuret of antimony: named 1847], a rare sulphantimonide of copper. Chalcotrichite [Gr. (θρίξ), τριχ- hair], a variety of cuprite occurring in acicular or capillary crystals, known as plush copper-ore.
1868. Dana, Min. (1884), 53. Specimens referred to chalcocite.
1857. Shepard, Min., Chalcodite.
1868. Dana, Min. (1880), 460. Brush ascertained the identity of chalcodite and stilpnomelane.
1801. trans. Klaproth’s Ess. Min., 492 Werner has given it the name Chalcolite.
1868. Dana, Min. (1884), 586. Chalcolite has since crept back again, but is no more appropriate now than it was sixty years ago.
1881. Nature, XXIV. 41. A new selenite of copper … Chalcomenite … occurs in the Argentine Republic.
1850. Dana, Min., 529. Chalcophacite.
1875. Amer. Chemist, July, 1. On chalcophanite, a new mineral species.
1850. Dana, Min., 529. Chalcophyllite. Ibid. (1875), App. ii. 11. Chalcopyrrhotite. Ibid. (1884), App. iii. 24. Chalcosiderite.
1835. Shepard, Min., 123. Chalkosine.
1868. Dana, Min., 85. Chalcostibite.
1832. Shepard, Min., 123. Chalkotrichite, the capillary variety of red copper ore.
1868. Dana, Min., 133. Capillary [cuprite]; chalcotrichite.
