Iron is abundant in Earth's crust and one of the seven metals of antiquity . Essential for life, iron can form various oxides and change...

Make non-toxic iron oxide pigments for painting, dyes, glazes, artistic to industrial uses. Iron oxide (Fe2O3) or rust exists on Earth...

Copperas, iron(II) sulfate or green ferrous sulfate, is a versatile compound in various applications, from agriculture to water...

Dyers, coloring professionals, metal workers and gemologists seek vibrant colors and tones since early civilization. The first use of...

Hematite, an iron oxide mineral, is well-known for its striking metallic luster and deep red to black colorations. Appearing in various...

"Hematite" comes from the ancient Greek for blood. The stone makes red dust when cut and polished. The red color isn't always visible at...

Hematite, an iron oxide mineral with the chemical formula Fe2O3, is prevalent around the world. Known for metallic luster and red earth...

Hematite, an iron ore with the chemical formula Fe2O3 (ferric oxide), is known for its metallic luster. In earthy form the stone offers a...

Copperas, known chemically as ferrous sulfate (FeSO₄), has been a vital compound across various industries for centuries. Although...

Caput mortuum (Latin "dead head") is a purple hematite iron oxide pigment, used in oil paints and dyes. Due to cultural significance of...

Among the showy flowering plants, perennial Asphodelus is an elegant and adaptable beauty. A genus of the Asphodelaceae or aloe family,...

Caput mortuum, Latin for as "dead head" is an ominous name for a valued color. As an iron oxide it's easy to make at home. As a purple...

Although alchemy is often associated with gold-making, another essential skill of the alchemist is to color or dye stones like quartz...

Christine de Pizan or Pisan (Cristina da Pizzano) c.1364 - 1430 is an Italian-born French court writer during the reign of King Charles...

Lapis lazuli or "blue stone" is prized for its depth and brilliance in paint as the color ultramarine. Before the 1800s, ultramarine...

Alchemy symbolism is an ancient and fluctuating system of intertwined elements compounded over more than 2000 years. A cornerstone of...

The Raven, Swan, Dove, Pelican, Peacock and Phoenix are among the symbolic birds of alchemy . Raven may be interchangeable with Crow,...

During the Western Renaissance, new exciting artists' pigments appear in brilliant colors, vibrant scarlet red, deep rich blue,...

Alchemy has origins in ancient medicine, metallurgy and gemology. As metallurgy evolves to coloring metals the goal is to make base...

Vitriols are among the most important alchemical ingredients. Green vitriol is the archaic term for all vitriols and now means ferrous...