Science

Chatkalite is a copper, iron, tin sulfide mineral with formula Cu6Fe2+Sn6S8. It is a tetragonal-scalenohedral pale rose mineral containing copper, iron, sulfur, and tin. It…

Charoite [K(Ca, Na)2Si4O10(OH, F)·H2O] is a rare silicate mineral, first described in 1978 and named for the Chara River. It is a stone of manifestation,…

Charlesite is a sulfate mineral of the ettringite group. It is a trigonal-ditrigonal pyramidal mineral containing aluminum, boron, calcium, hydrogen, oxygen, silicon, and sulfur. This…

Chapmanite is a rare silicate mineral belonging to the nesosilicate group, discovered in 1924, and named in honor of the late Edward John Chapman (1821–1904),…

Chaoite, or white carbon, is a mineral described as an allotrope of carbon whose existence is disputed. It is a supposed allotrope of carbon whose…

Changbaiite (Formula- PbNb2O) is a member of the oxide mineral class in which the mineral contains oxygen which is grouped along with one or two…

Chamosite is the Fe2+ end member of the chlorite group. It is a greenish grey or black silicate of iron and aluminum. A hydrous aluminum…

Infinite Series The power series Σxn. Binomial series (1 + x)n (n ≠ positive integer), exponential and logarithmic series with ranges of validity (statement only).…

Chambersite is a manganese borate mineral with formula: Mn3B7O13Cl. It is a member of the borate mineral series that includes other minerals such as ericaite,…

Challacolloite, formula- KPb2Cl5, is a rare halide mineral. It is a rare monoclinic halide mineral with the chemical formula KPbCl that occurs as white encrustations…

Chalcopyrite is a copper iron sulfide mineral that crystallizes in the tetragonal system. It is a yellow crystalline mineral consisting of a sulfide of copper…

Chalcophyllite is a rare secondary copper arsenate mineral occurring in the oxidized zones of some arsenic-bearing copper deposits. It is named from the Greek words…