Rust, the reddish-brown coating on metals, is formed by exposure to oxygen and moisture. Responsible for this phenomenon are several...

Fermentation and rot are natural processes. While they may seem synonymous, a closer look reveals the differences between the two....

Tycho Brahe (1546 - 1601) is a Danish Renaissance astronomer and polymath. His observatory Uraniborg is a center of intellect and...

From vibrant reds extracted from roots to the deep blues synthesized from leaves, plants have abundant natural dyes and also health...

Niter or saltpeter (KNO3) is the mineral form of potassium nitrate. A soft substance easy to grind, it creates colorless to white...

Mother of vinegar ( Mycoderma aceti ), is a fascinating compound of life, with a range of health benefits and versatile uses. The Mother...

Vinegar eels ( Turbovecula aceti ) are a vital link in the complexity of microscopic life forms. These tiny creatures are only 1-2 mm...

The Book of Comarius is a mysterious tome dedicated to Cleopatra the Divine, or Cleopatra the Alchemist of Alexandria. In it, Comarius, a...

Tartrate crystals appear on the bottom of a wine glass or in a bottle of grape juice, created by a reaction of tartaric acid. Reference...

Lixiviation or leaching is an ancient process alchemy still used today in making tea, extracting dyes and ores. Lixivium is a general...

Ammonia is a simple versatile compound vital to life on Earth. Here's the info on its formation, historical significance, potential...

Rust, the reddish-brown coating that forms on iron or steel due to exposure to oxygen and moisture is a fascinating display of chemistry....

Silicon dioxide (SiO₂), or silica, holds fascinating secrets within its molecular structure. It's one of the most abundant minerals found...

Carbuncle has many meanings. Today it most often describes a deep red almandine garnet gemstone cut with a smooth, convex face or...

Magnetite is an iron ore formed below the earth's surface. As one of the primary iron ores it keeps the wheels of progress turning....

Iron oxides create beautiful pigments in colors from warm yellow and orange to deep reds, brown, black and even green. Besides industry...

Litharge (PbO) is a lead oxide mineral with an alpha and beta structure. It's among the most prominent of the lead oxides known due to...

In the Renaissance new healing treatments come to light, many based on ancient medicine. In the 17th and 18th century these include...

Distilling essential oil can be used for aromatherapy, in cuisine, beauty, healing or to set a mood. Here's the methodology to capture...

Arcanum Joviale is an alchemy medicine made of metal salts, taken to induce sweating. While the term sudorific is introduced in 1626,...