The Right Chemistry: Rediscovering a biblical blue dye

Baruch Sterman, an Israeli scientist, has taken an interest in producing the blue dye he believes is tekhelet from snails.

Tekhelet - Wikipedia

The Science of Tekhelet - Baruch Sterman's Home Page

A chemistry tweak can turn beets' red juice into a true blue dye

Islam Rediscovered

Chemist cooks up nontoxic blue dye using beets The Arkansas Democrat-Gazette - Arkansas' Best News Source

Tekhelet: The Mystery of the Long-Lost Biblical Blue Thread

This collection of essays is the result of research spanning more than a decade, motivated by nothing more than the desire to reach a clear

Threads of Reason: A Collection of Essays on Tekhelet

Indigo: The story of India's 'blue gold', History

Why so blue? Biblical dye was made from snails

Tyrian purple: The lost ancient pigment that was more valuable than gold

Heritage Science Plus Analytical Chemistry, Spectroscopy, and Bioanalysis: Angewandte Chemie International Edition: Vol 57, No 25

Fringe Benefits - OU Life

Colour in art: a brief history of blue pigment

The Rarest Blue: The Remarkable Story of an Ancient Color Lost to History and Rediscovered [Book]