Quote:
Originally Posted by frostfire
Today I was told that galls used to be used for making yellow ink and it was taught at schools how to make it.
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The main ingredient is the tannin in the galls so oak is preferred: needs iron salts as mordants to produce black inks. Other metals can be used to produce blues or greens I recall ....
The ink corrosion website: iron gall ink: ink recipes
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"The whole of nature is a conjugation of the verb to eat."
William Ralph Inge
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