Chrysocolla (gold-solder, Greek ; Latin chrȳsocolla, oerugo, santerna; Syriac "tankar" (Bar Bahlul), alchemical symbol 🜸), also known as "goldsmith's solder" and "solder of Macedonia" (Pseudo-Democritus), denotes:
The soldering of gold. The materials used for soldering gold and certain gold alloys still used by goldsmiths. A mix of copper and iron salts produced by the dissolution of a metallic vein by water. Malachite (green carbonate of copper), and other alkaline copper salts of green colour. Greenish copper salts obtained by boiling infant's urine and natron in copper vessels. A particular copper hydrosilicate is named chrysocolla by modern mineralogists.
See also Chrysoberyl Chrysolite Chrysoprase Chrysotile Sarcocolla
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