redruthiten.

Brit.

/ˌrɛdˈruːθʌɪt/,

/ˈrɛdruːθʌɪt/, U.S.

/ˌrɛdˈruθaɪt/,

/ˈrɛdrʊˌθaɪt/

Origin: From a proper name, combined with an English element. Etymons: proper name Redruth , -ite suffix¹.

Etymology: < Redruth, the name of a town in Cornwall, where the mineral was first found (see quot. 1849) + -ite suffix¹. Compare chalcocite n. at chalco- comb. form .

Mineralogy. Now rare.

A dark grey or black copper ore mineral. Now usually called chalcocite.The mineral is a sulphide of copper, Cu₂S. Crystal system: orthorhombic.

ΘΚΠ

the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > chalcocite group > copper sulphide

grey orea1728

redruthite1849

marcylite1853

chalcocite1868

1849 J. Nicol Man. Mineral. 473 Redruthite..occurs with various other ores of copper and iron in the metamorphic and stratified rocks... Crystals are chiefly found in Cornwall, where very fine specimens have been obtained, especially in the mines near Redruth.

1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 403 Cuprous Sulphide..occurs native as copper-glance or redruthite.

1923 H. H. Read Rutley's Elem. Mineral. (ed. 21) ii. 349 Copper glance, Chalcocite, Redruthite: Vitreous Copper Ore.

1950 A. Harker Metamorphism (ed. 3) 78 Bornite, the latter mineral reverting on cooling to chalcopyrite and redruthite.

1956 Progr. Metal Physics 6 46 Redruthite (essentially cuprous sulphide).

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	redruthite
释义	redruthiten. Brit. /ˌrɛdˈruːθʌɪt/, /ˈrɛdruːθʌɪt/, U.S. /ˌrɛdˈruθaɪt/, /ˈrɛdrʊˌθaɪt/ Origin: From a proper name, combined with an English element. Etymons: proper name Redruth , -ite suffix¹. Etymology: < Redruth, the name of a town in Cornwall, where the mineral was first found (see quot. 1849) + -ite suffix¹. Compare chalcocite n. at chalco- comb. form . Mineralogy. Now rare. A dark grey or black copper ore mineral. Now usually called chalcocite.The mineral is a sulphide of copper, Cu₂S. Crystal system: orthorhombic. ΘΚΠ the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > chalcocite group > copper sulphide grey orea1728 redruthite1849 marcylite1853 chalcocite1868 1849 J. Nicol Man. Mineral. 473 Redruthite..occurs with various other ores of copper and iron in the metamorphic and stratified rocks... Crystals are chiefly found in Cornwall, where very fine specimens have been obtained, especially in the mines near Redruth. 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 403 Cuprous Sulphide..occurs native as copper-glance or redruthite. 1923 H. H. Read Rutley's Elem. Mineral. (ed. 21) ii. 349 Copper glance, Chalcocite, Redruthite: Vitreous Copper Ore. 1950 A. Harker Metamorphism (ed. 3) 78 Bornite, the latter mineral reverting on cooling to chalcopyrite and redruthite. 1956 Progr. Metal Physics 6 46 Redruthite (essentially cuprous sulphide). This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1849
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