Colours made from manganese dioxide
3 colours that our sources say are made from manganese dioxide.
Purple and violet
Crystal violet
A synthetic purple dye used in science, medicine, and industryDye
Green
Malachite green
A synthetic green dye once common for silk, now controversial in aquacultureDye · 🇨🇳 China +3
Purple and violet
Manganese violet
A synthetic purple pigment once favoured by Impressionist paintersPigment
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Manganese violet: Georges Seurat, Public domain, source
- Crystal violet: Richard Masoner, CC BY-SA 2.0, source