Verdigris: Creation of Coveted Blue Green Pigment
Verdigris is the green rust or patina on copper, created as the metal reacts with oxygen in the environment. Copper corrodes green to...
Verdigris: Creation of Coveted Blue Green Pigment
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Carnelian - Sunny Gems of the Ancient World
Jade - Jadeite, Nephrite & Jade Roads
Hattusa Green Stone - Mystic Secrets
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Spiritual Alchemy: Touching the Divine
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Phosphorus: Element of Fatal Fascination
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Baltic Amber - Gold of the North
Weapons & Warfare of Bronze Age Europe 1
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