Here is some reading, References, will add to it and amend....
On Murex dye
The Purple Murex Dye in Antiquity / Marianne Guckelsberger
The Politics of Purple: Dyes from Shellfish and Lichens / Karen Diadick Casselman, Takako Derada
The First Optimal All-Murex All-Natural Purple Dyeing in the Eastern Mediterranean in a Millennium and a Half / Zvi C Koren
] - a very good site with list of readings
On vedic Soma/Soma sacrifice
How a psychoactive substance becomes a ritual: the case of Soma /F Staal
A Botanical Perspective on the Identity of Soma (Nelumbo Nucifera Gaertn.) Based on Scriptural and Iconographic Records / Andrew McDonald
Accounts of ancient texts
Apocrypha Arabica : 1. Kitab al Magall, or the book of the rolls. 2. The story of Aphikia. 3. Cyprian and Justa, in Arabic. 4. Cyprian and Justa, in Greek / Margaret Dunlop Gibson
Pliny the Elder, The Natural History
John Bostock, M.D., F.R.S., H.T. Riley, Esq., B.A., Ed.
Aristotle The history of animals V
Vedic scripts, The Holy Bible, Avesta and Pahlavi scripts,