Science

Anorthite is the calcium endmember of plagioclase feldspar. Plagioclase is an abundant mineral in the Earth’s crust. The formula of pure anorthite is CaAl2Si2O8. It…

Annite is a phyllosilicate mineral in the mica family. It has a chemical formula of KFe32+AlSi3O10(OH)2. Annite is the iron end member of the biotite…

A polynomial of the second degree is generally called a quadratic polynomial. In elementary algebra, the quadratic formula is the solution of the quadratic equation.…

Annabergite is an arsenate mineral consisting of a hydrous nickel arsenate, Ni3(AsO4)2·8H2O, crystallizing in the monoclinic system and isomorphous with vivianite and erythrite. It is…

Importance of Good Health and Fitness Many people do not realize, and often underestimate, the importance of good health. Health, as they say, is wealth.…

Ankerite is a calcium, iron, magnesium, manganese carbonate mineral of the group of rhombohedral carbonates with the formula: Ca(Fe, Mg, Mn)(CO3)2. It forms in iron-rich hydrothermal…

Anhydrite is a mineral – anhydrous calcium sulfate, CaSO4. It is not a common mineral, as it easily alters the much more common mineral Gypsum…

A polynomial of the second degree is generally called a quadratic polynomial. In elementary algebra, the quadratic formula is the solution of the quadratic equation.…

Finding the Percent of a Number To determine the percent of a number do the following steps: Multiply the number by the percent (e.g. 87…

Anglesite is a lead sulfate mineral with the chemical formula PbSO4. It is a secondary lead mineral that always forms through the alteration of lead…

Andyrobertsite is a rare, complex arsenate mineral with a blue color. It is found in the Tsumeb mine in Namibia and named after Andrew C.…

Andradite is a species of the garnet group. It is a nesosilicate, with formula Ca3Fe2Si3O12. It is a member of the Garnet group, and although…