What is the chief ore of iron? What is a metallic mineral? Define tropical region.
Answers
Answer:
The chief ores of iron consist mainly of the oxides: hematite, Fe2O3 ; goethite, alpha -FeO(OH); magnetite, Fe3O4; and the carbonate, siderite FeCO3. The term has also been used extensively by petrologists to describe opaque minerals in thin sections, including magnetite, ilmenite, pyrite, etc.
The tropics are the region of Earth surrounding the Equator. They are delimited in latitude by the Tropic of Cancer in the Northern Hemisphere at 23°26′11.6″ N and the Tropic of Capricorn in the Southern Hemisphere at 23°26′11.6″ S; these latitudes correspond to the axial tilt of the Earth.
Answer:
The chief ores of iron consist mainly of the oxides: hematite, Fe2O3 ; goethite, alpha -FeO(OH); magnetite, Fe3O4; and the carbonate, siderite FeCO3. The term has also been used extensively by petrologists to describe opaque minerals in thin sections, including magnetite, ilmenite, pyrite, etc.
Metallic minerals are minerals which contain one or more metallic elements. Metallic minerals occur in rare, naturally formed concentrations known as mineral deposits. ... Ontario is a leading producer of metals such as platinum group metals, nickel, cobalt, gold, copper, silver and zinc.
The tropics are regions of the Earth that lie roughly in the middle of the globe. The tropics between the latitude lines of the Tropic of Cancer and the Tropic of Capricorn. The tropics include the Equator and parts of North America, South America, Africa, Asia, and Australia.