Sylvia Rose
Iron(III) Oxide: Creation, Art & Science
Iron(III) oxide or ferric oxide (Fe2O3) yields a striking red color as a pigment, and has a wide range of uses. From industrial...
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Sylvia Rose
Sep 283 min read
Litharge: Toxic Lead Mineral of Science & Art
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...
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Sylvia Rose
Sep 86 min read
Almadén Mines: Ancient Mercury Extraction
The Almadén Mines in central Spain have an infamous past driven by profit and greed. The deadly history of ancient Almadén revolves...
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Sylvia Rose
Sep 24 min read
Alchemy: Philosophers' Stone History & Lore
The Philosophers' Stone or lapis philosophorum is a miraculous legendary substance. It holds secrets to an elixir of life, a cure for...
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Sylvia Rose
Aug 314 min read
How to Make Copperas Red: Simply Science
Copperas, iron(II) sulfate or green ferrous sulfate, is a versatile compound in various applications, from agriculture to water...
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Sylvia Rose
Aug 304 min read
Earthy & Mineral Hematite: Differences
Hematite, an iron oxide mineral, is well-known for its striking metallic luster and deep red to black colorations. Appearing in various...
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Sylvia Rose
Aug 304 min read
Hematite: Iron Oxide Red Earth Pigment
"Hematite" comes from the ancient Greek for blood. The stone creates red dust when cut and polished. The red color isn't always visible...
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Sylvia Rose
Jul 263 min read
Alkanet: Ancient Dye Magic & Medicine
Alkanet (Alkanna tinctoria) is a plant related to borage, also a popular medicinal herb. Alkanet is used in folk magic, alchemy, natural...
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