Acidithiobacillus ferrooxidans is only one of the amazing bacteria used in biometallurgy. In an age of environmental concerns,...

Diana's Tree ( Arbor Diana or Dianae ) is one of the most intriguing creations of alchemy. Its delicate branches of crystallized silver...

Chalcopyrite (CuFeS₂) is vital to the earth's geology. A primary ore of copper, this scintillating mineral is influential to health,...

Copper (Cu) and its warm golden red hue is part of humanity. It's one of the most important metals of alchemy , aids plant health and is...

Carl Wilhelm Scheele (1742 - 1786) is a self-taught German-Swedish chemist whose work has strong impact on chemical sciences of the day....

Copper (II) sulfate CuSO4 yields a vivid color and widespread applications. Also known as blue vitriol in alchemy and chalcanthite in...

Metal salts are compounds created from metals and acids. In history and today they enjoy uses in beauty, natural health, chemical...

Silverpoint is a drawing medium with distinct artistic potential. This delicate and precise medium has a rich history, unique properties,...

Cupriavidus metallidurans has an extraordinary ability to prosper in toxic environments. Not only does it survive, it turns toxic metals...

Chloroauric acid H[AuCl4] is a yellow solution created in the 18th century. A gold(III) salt, chloroauric acid is an innovative compound,...

Alchemy these days is often seen only as a mystical practice purveying the clic hé of turning base metals into gold. Alchemy is in fact...

Hydrochloric acid is a powerful chemical. Used from old alchemical practices to modern times, this colorless, pungent-smelling liquid is...

Alchemy seeks the magnum opus or great work. This twelve step program comes from the anonymous Ripley Scroll, so called as alchemist...

Chemistry from 1600 to 1800 yields transformative discoveries influential today. In the German lands this era is characterized by...

Sodium silicate or "water glass" or liquid glass, originates in ancient practices. A chemical compound, sodium silicate is composed of...

The Indus Valley Civilization of the Bronze Age is one of the earliest urban societies, famous for trade, inventiveness and extraordinary...

Iron III acetate, or ferric acetate, is a non-toxic compound in numerous scientific and industrial applications. Ferric acetate is a...

White lead, lead(II) carbonate or PbCO₃, has a long sordid history in art, paint and industry, a major source of white for artists and in...

Toxic heavy metals cadmium, mercury, lead, chromium, and arsenic are elements known for high density and toxicity even in small amounts....

Arsenic trioxide is a toxic compound with a a long and complex history, known at least by the time of the ancient Romans. Here's a look...