a common mineral and important ore of copper, copper iron sulfide, Cu 5 FeS 4 , occurring in masses, of brownish color when first exposed to the air; peacock ore.
An Elementary Study of Chemistry William McPherson
a mineral consisting of a sulphide of copper and iron that tarnishes to purple or dark red. It occurs in copper deposits. Formula: Cu5FeS4 Also called peacock ore
noun a state of NE Nigeria, on Lake Chad. Capital: Maiduguri. Pop: 4 151 193 (2006). Area: 70 898 sq km (27 374 sq miles) Contemporary Examples Nigeria’s Do-It-Yourself Boko Haram Busters Nina Strochlic May 15, 2014 Nigeria’s Do-It-Yourself Boko Haram Busters Nina Strochlic May 15, 2014
a former sultanate in Africa, SW of Lake Chad: now largely a province in Nigeria. Historical Examples Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 Various The Color Line William Benjamin Smith Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 6 Various Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 6 Various A Book of Discovery Margaret […]
borneol. a white, translucent, lumpy, very slightly water-soluble, solid terpene alcohol, C 10 H 18 O, occurring in various isomeric forms, having a burning, mintlike taste, obtained from the trunk of a tree, Dryobalanops aromatica, or by the reduction of camphor: used in the form of its esters in the manufacture of synthetic camphor and […]
a liquid, C 11 H 18 O 2 , having a piny odor, used chiefly as a scent in the manufacture of soaps and disinfectants.