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Curite is a lead uranium oxide mineral with formula: Pb3(UO2)8O8(OH)6·3(H2O). It is named after the physicists Marie and Pierre Curie, who are both known for…

Cuprospinel is an inverse spinel with the formula CuFe2O4, where copper substitutes some of the iron cations in the structure. It is an isometric-hexoctahedral black…

Cuprosklodowskite is a secondary uranium mineral formed by alteration of earlier uranium minerals. Its empirical formula is Cu(UO2)2(HSiO4)2·6(H2O). It is a rare uranium mineral that…

Hyperbola in Coordinate Geometry Co-ordinates Geometry is a system of geometry where the position of points on the plane is described using an ordered pair of…

Cuprite is an oxide mineral composed of copper(I) oxide Cu2O, and is a minor ore of copper. It is a dark red or brownish-black mineral…

Cupalite is a rare mineral which is mostly composed of copper and aluminum, but might contain up to several percents of zinc or iron; its…

Cubanite is a yellow mineral of copper, iron, and sulfur, CuFe2S3. It is an orthorhombic-dipyramidal mineral containing copper, iron, and sulfur. It is a rare…

Ellipse in Coordinate Geometry Co-ordinates Geometry is a system of geometry where the position of points on the plane is described using an ordered pair…

Cryptomelane is a potassium manganese oxide mineral with formula K(Mn4+, Mn2+)8O16. It is a mineral consisting of an oxide of manganese and potassium, probably KMn8O16.H2O,…

Cryolite (Na3AlF6, sodium hexafluoroaluminate) is an uncommon mineral identified with the once large deposit at Ivigtût on the west coast of Greenland, depleted by 1987.…

Crossite is an inosilicate double chain sodic amphibole and is a rare silicate mineral belonging to the riebeckite group. It is an amphibole intermediate in…

Parabola in Coordinate Geometry Co-ordinates Geometry is a system of geometry where the position of points on the plane is described using an ordered pair…