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Clinochrysotile is a soft, fibrous silicate mineral in the serpentine group of phyllosilicates, also called “white asbestos”. It is a monoclinic form of Chrysotile. It…

Cleveite is an impure radioactive variety of uraninite containing uranium and found in Norway. It has the composition UO2 with about 10% of the uranium…

Types of Employee Selection Tests A selection takes a look at is a systematic and standardized manner of sampling human conduct in an effort to…

Citrine is a variety of quartz whose color ranges from a pale yellow to brown due to ferric impurities. It is a glassy yellow variety…

Chrysoprase is a gemstone variety of chalcedony that contains small quantities of nickel. It is an apple-green gemstone consisting of a variety of chalcedony that…

Chlorastrolite (also known as Isle Royale Greenstone), is a green or bluish green stone. It is named from Greek “chloros” – green, and “astros” –…

Polar Co-ordinates are widely used in higher mathematics as well as in other branches of science.  In polar co-ordinate system, the position of a point on the…

Chiastolite is a variety of the mineral andalusite with the chemical composition Al2SiO5. It is a form of the mineral andalusite containing carbonaceous inclusions giving…

Chalcedony is a translucent variety of quartz of various colors and waxy luster. It is a cryptocrystalline form of silica, composed of very fine intergrowths…

Ceylonite is dingy blue or grey with black varieties of spinel. It is a dark-colored spinel, called also pleonaste. It was named after the island…

Relation between Cartesian and Polar Co-Ordinates Polar Co-ordinates are widely used in higher mathematics as well as in other branches of science. In mathematics, the polar coordinate system is…

Carnelian is a brownish-red mineral commonly used as a semi-precious gemstone. It is the red, orange, or an amber variety of Chalcedony. In ancient Egypt,…