Diopside Genuine
Diopside is a semi-precious stone used, among other things, in jewellery. The green variety, chrome diopside, is sometimes referred to as Russian emerald. It often originates from Russia, and its deep green colour can…
Category: Natural colors
Terre Verte (Green Earth) PG23
This text was revised with new illustrations on January 5, 2026. Green earth is a natural mineral pigment traditionally obtained from the minerals celadonite and glauconite. It was already in use in ancient Rome,…
Indigo – NB1
Indigo is a dye that is extracted from more than 30 different species of the plant Indigofera, which is widely present in large parts of the world. It is from the green leaves that…
Verona green (PG23)
Traditionally, there are many different shades of green earth, all different depending on where they come from. But two sources of green earth are particularly well known, namely Bohemia and Verona. Verona green in…
Serpentine green
I had not intended to write about Serpentine green or other colors made from minerals on the blog. Partly because they are unusual and often expensive and in addition there are so few manufacturers…
Madder lake
Real madder is a red dye extracted from the madder root. In ancient Egypt and in Asia, madder was used for textile dyeing. It has been used in Europe at least since the Middle…
