Science

Almarudite is an extremely rare alkaline manganese beryllium silicate mineral of the cyclosilicates (ring silicates) class, with the formula written as K([], Na)2 (Mn2+, Fe2+,…

Almandine, formula- [Fe32+ Al2 Si3 O12], is the ferrous iron end member of the class of garnet minerals representing an important group of rock-forming silicates,…

A sequence of numbers is known as an arithmetic progression (A.P.) if the difference between the term and the preceding term is always same or…

Alluaudite is a relatively common alkaline manganese iron phosphate mineral with formula (Na, Ca)Mn2+(Fe3+, Mn2+, Fe2+, Mg)2(PO4)3. It is a rare mineral (Na, Fe, Mn)PO4 consisting of…

Selection of Terms in an Arithmetic Progression A sequence of numbers is known as an arithmetic progression (A.P.) if the difference between the term and…

Alluaivite is an exceedingly rare mineral of the eudialyte group, with complex formula written as Na19(Ca, Mn)6(Ti, Nb)3Si26O74Cl·2H2O. It is named after Mt. Alluaiv in…

Allophane is amorphous to poorly crystalline hydrous aluminum silicate clay mineraloid. Its chemical formula is Al2O3·(SiO2)1.3-2·(2.5-3)H2O. It is not Radioactive. Since it has short-range atomic…

Alloclasite [(Co, Fe)AsS] is a sulfosalt mineral. It is a member of the arsenopyrite group. It is the most abundant arsenic mineral and the primary ore…

Alleghanyite is a moderately rare humite mineral with formula Mn5(SiO4)2(OH)2, belonging to the nesosilicates class. It is a mineral consisting of a pink basic silicate…

Sum of First n Natural Numbers Natural Numbers are the positive integers (whole numbers) 1, 2, 3, etc., and sometimes zero as well. Let S…

Allargentum is a rare silver antimonide. It is a mineral from the class of antimonides, a superclass of sulfides and sulfosalts (sometimes ascribed to the…

Allanpringite is a phosphate mineral named after Australian mineralogist Allan Pring, South Australian Museum. It was named to honor Australian mineralogist Dr. Allan Pring. Allanpringite…