Colemanite

Colemanite

Colemanite [(Ca2B6O11·5H2O) or (CaB3O4(OH)3·H2O)] is a borate mineral found in evaporite deposits of alkaline lacustrine environments. It is a white crystalline mineral, typically occurring as glassy…
Cohenite: Properties and Occurrences

Cohenite: Properties and Occurrences

Cohenite is a naturally occurring iron carbide mineral with the chemical structure (Fe, Ni, Co)3 C. It is a tin-white crystalline mineral consisting of a…
Formula on Mensuration

Formula on Mensuration

Formula on Mensuration Mensuration is the branch of mathematics which deals with the study of Geometric shapes, their area, volume and related parameters. Particularly it…
Coffinite: Properties and Occurrences

Coffinite: Properties and Occurrences

Coffinite is a uranium-bearing silicate mineral with formula: U(SiO4)1-x(OH)4x. It is a uranium-bearing silicate mineral. It was first described in 1954 for an occurrence at…
Coesite: Properties and Occurrences

Coesite: Properties and Occurrences

Coesite is a form (polymorph) of silicon dioxide SiO2 that is formed when very high pressure (2–3 gigapascals), and moderately high temperature (700°C, 1,300°F), are…
Coconinoite

Coconinoite

Coconinoite [Formula: Fe3+2 Al2(UO2)2(PO4)4(SO4)(OH)2•20(H2O)] is a uranium ore that was discovered in Coconino County, Arizona. It is a monoclinic mineral containing aluminum, hydrogen, iron, oxygen,…
Coccinite

Coccinite

Coccinite is a rare mercury iodide mineral with the chemical formula of HgI2, mercury(II) iodide. It is a native mercury iodide found especially at Broken…
Cobaltite: Properties and Occurrences

Cobaltite: Properties and Occurrences

Cobaltite is a sulfide mineral composed of cobalt, arsenic, and sulfur, CoAsS. It is a sulfosalt mineral, containing sulfur, arsenic, and cobalt. The mineral was…
Clintonite: Properties and Occurrences

Clintonite: Properties and Occurrences

Clintonite is a calcium magnesium aluminum phyllosilicate mineral. It is a group of micas that contain calcium instead of potassium. It occurs in chlorite schists,…
Clinozoisite: Properties and Occurrences

Clinozoisite: Properties and Occurrences

Clinozoisite is a complex calcium aluminum sorosilicate mineral with formula: Ca2Al3(Si2O7)(SiO4)O(OH). It is colorless, yellow, greenish, or pale rose-red mineral similar to Epidote, but containing…
Clinoptilolite

Clinoptilolite

Clinoptilolite is a natural zeolite comprising a microporous arrangement of silica and alumina tetrahedra. It has the complex formula: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12H2O. The name is derived from…
Clinohumite: Properties and Occurrences

Clinohumite: Properties and Occurrences

Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula (Mg, Fe)9(SiO4)4(F, OH)2. It was first discovered in…
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