In practical alchemy, mercury II oxide (HgO) is often called the "Red Precipitate," with its compound Mercuric Amidochloride (Hg(NH2)Cl),...

Diatomaceous earth (DE) is an amazing natural powder ground from the sedimentary stone diatomite. The stone itself is made of fossilized...

Brevibacterium linens is a remarkable microorganism on a mission to spread its pungent aroma everywhere, from the unique bite of cheese...

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

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,...

Foodborne molds can endanger health, home and family. Hidden in pantry and fridge, these hardy survivors are unnoticed and dormant until...

Chlorine (Cl) is a vital element in nature, used in industry as a disinfectant. Characterized by its highly reactive habits, chlorine is...

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

Vorticella is a genus of single-celled water-loving organisms with specialized cilia. As an adult the microbe attaches to a substrate...

Lye or sodium hydroxide (NaOH) is a vital part of human history. Also called caustic soda, lye is a white odorless solid. A strong...

Fungal biofilms are integral to ecosystems. Often unnoticed, these living structures exemplify microorganism cooperation in survival,...

Glycerin, also known as glycerol or glycerine, is a simple polyol compound with the chemical formula C3H8O3. This colorless, odorless,...

Bacteria affect food, water, soil, human health and the vibrant colors of art. Here are six remarkable bacteria known for stunning...

The microbes of concrete corrosion include bacteria, fungi and algae. Their purpose in life is to break down and decompose matter, and...

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,...

Drawing is a creative expression for humans since cave paintings of prehistory. In art, anything making a mark is a drawing tool....

Sanguine is a rich, reddish-brown chalk beloved by Renaissance artists such as Michelangelo. Creating flesh-like tones in the human form...

Guar gum is recognized for its unique natural properties in visual arts and crafting. From enhancing textures to creating custom paints,...