Andalusite: Properties and Occurrence Andalusite is an aluminum nesosilicate mineral with the chemical formula Al2SiO5. It is a polymorph with two other minerals: kyanite and sillimanite. Andalusite is trimorphic…
Important Reasons for Physical Activity Important Reasons for Physical Activity Physical activity can be defined as any movement of your body that uses energy. Thus, housework can be a physical…
Anatase Anatase is one of the three mineral forms of titanium dioxide (TiO2), the other two being brookite and rutile. At higher temperatures, about 915 degrees…
Irrational Roots of a Quadratic Equation 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.…
Ancylite Ancylite is a group of hydrous strontium carbonates minerals containing cerium, lanthanum and minor amounts of other rare-earth elements. The composition is Sr(Ce, La)(CO3)2(OH)·H2O with…
Anapaite Anapaite is a calcium–iron phosphate mineral with formula: Ca2Fe2+ (PO4)2·4H2O. It is rare and beautiful phosphate mineral. It is a mineral that typically occurs in…
Absolute Value of a Number Think of the distance from one integer to another as being one step. If you start at zero and take two steps to the right,…
Complex Roots of a Quadratic Equation 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.…
Anandite Anandite is a rare phyllosilicate with formula (Ba, K)(Fe2+, Mg)3(Si, Al, Fe)4O10(S, OH)2. It crystallizes in the monoclinic crystal system. It is black in color with…
Analcime Analcime is a white, gray, or colorless tectosilicate mineral. It is a member of the zeolite group and often occurs together with other zeolites. It consists of…
Converting from Scientific Notation to Numbers Converting from Scientific Notation to Numbers Scientific notation is a standard way of writing very large and very small numbers so that they’re easier to…
Converting Numbers to Scientific Notation Converting Numbers to Scientific Notation Scientific notation is a standard way of writing very large and very small numbers so that they’re easier to both…