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Purification Alum

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substance

Purification Alum

Colors & materials

A named craft material / finish lemma (Purification Alum) drawn as an exact public-domain workshop phrase.

Purification Alum is historically related to Salt.
mineral-lake-pigments seats orphan purification-alum beside salt as a first craft peer — object speech, not a text-container or tradition dump.
from Josef Bersch (tr. PD) · The Manufacture of Mineral and Lake Pigments, PD Gutenberg #72143
historically related to · sourced · documented

sources

The Manufacture of Mineral and Lake Pigments · Josef Bersch (tr. PD)
Josef Bersch, The Manufacture of Mineral and Lake Pigments (PD Gutenberg ed.).