An alloy is a mixture of metals or a mixture of a metal and another element.Alloys are defined by metallic bonding character.An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Intermetallic compounds are alloys with a defined stoichiometry and crystal structure.he term alloy is used to describe a mixture of atoms in which the primary constituent is a metal. The primary metal is called the base, the matrix, or the solvent. The secondary constituents are often called solutes.
Marl or marlstone is a calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt.
Margarine (/ Ë m ÉËr dÊ r Éª n / ( listen) or /-dÊ É r-, - É¡ É r-, Ë m ÉËr dÊ É r iË n, - Ë r iË n /) is an imitation butter spread used for flavoring, baking, and cooking. Hippolyte MÃ¨ge-MouriÃ¨s created it in France in 1869 when responding to a challenge by Emperor Napoleon III to create a butter substitute from beef tallow for the armed forces and lower classes.