Science of Rust Earth Pigments & Colors
Goethite: The Other Iron-Rich Mineral
Knowing the Three Primary Oxides of Iron
How to Make Iron Oxide Pigment at Home
Making Sulfuric Acid in History & Today
Jungian Numerology & Number Meanings
How to Make Copperas Red: Simply Science
Natural Purple Dyes: Ancient & Medieval
Earthy & Mineral Hematite: Differences
Hematite: Iron Oxide Red Earth Pigment
How to Extract Red from Hematite: A Step-by-Step Guide
Aqua Regia: The Green Lyon of Alchemy
How to Make Copperas Ferrous Sulfate: Process
Caput Mortuum: Dead Head Purple Pigment
Question of Alchemy in Ancient Rome
Venice Italy: Jewel of the Renaissance
Alchemy & Renaissance Glass: Antonio Neri
Tricky Alchemy: Caput Mortuum Purple
Alchemy: Dyeing Stones to Look Like Gems
Urine in Medieval Alchemy & Medicine