Science

A metallic bond is the sharing of many detached electrons between many positive ions, where the electrons act as a “glue” giving the substance a…

Definition – Cassiterite, also called tinstone, is a tin oxide mineral, SnO2, which is the most important source of tin, and most of the world’s…

A coordination complex is an inorganic chemical compound where a central atom (usually a metal) has an electron shell which permits it to combine with…

Mining is the process of digging things out of the ground. It is the act, process, or industry of extracting ores, coal, etc. Any material…

Definition – ‘Arsenopyrite’, also called Mispickel, is an iron arsenic sulfide mineral with a chemical composition of FeAsS. It is a hard (Mohs 5.5-6) metallic,…

A membrane protein is a protein molecule that is attached to or associated with the membrane of a cell or an organelle. They represent about…

Definition – Lepidolite is one of the most powerful crystals, which is a lilac-gray or rose-colored member of the mica group of minerals with formula…

Metallurgy is the study of metals. Alloys (mixtures of metals) are also studied. People who study or work with metals are called metallurgists. It is…

Definition – Orpiment, the transparent yellow-orange color mineral arsenic sulfide (As2S3), which is found in volcanic fumaroles, low-temperature hydrothermal veins, and hot springs and is…

Some chemical elements are called metals. It is a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and…

Definition – Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group, that form a solid solution series ranging from pure albite…

Cholesterol is a molecule that is found in animal cells and body fluids. It is a waxy, fat-like substance that’s found in all the cells…