Silica, or silicon dioxide (SiO2), occurs in the Earth’s crust, the microcosm and daily life. Silica makes ancient glass such as...

Silicon (Si) is the second most abundant element in the Earth's crust, next to oxygen. A ductile metalloid, it's integral to industry and...

Silicon (Si) is one of the most abundant elements on Earth, a ductile metal important to industry and natural processes. Silicon is used...

Nickel (Ni), a silvery-white metal with a lustrous sheen, is a transition element essential to industry and commerce, and known in...

Cobalt is a silvery grey metal used across various fields, including science, medicine, and industry. It receives its name from the...

Zaffre (zaffer) is a vibrant deep blue pigment developed by alchemists, major pigment creators, by c. 1550 AD. Characterized by brilliant...

Flowers of antimony are a purified form of antimony trioxide (Sb2O3). Created through sublimation, they have chemical and medical...

Glass of antimony , or vitrum antimonii , gives warm yellow or red hues. As Sb2O3, its use in alchemy is largely medicinal, one of many...

Calcite is made up of calcium carbonate (CaCO3). With stunning crystal formations and a range of beautiful colors, calcite also has...

Sporosarcina pasteurii is a gram-positive bacterium with the extraordinary ability to precipitate calcite and solidify sand when exposed...

Calcium (Ca) is a vital element in life and health on Earth. A silvery white metal, calcium is a strong builder, from bone structure to...

Liver of Sulfur is a unique compound of alchemy, metallurgy and medicine. Also known as hepar sulfuris or sulfurated potash, Liver of...

Pyrometallurgy is the high-temperature processing of ores to extract and refine metals. It uses alchemical processes in a modern...

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...