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Bowl of chalcedony glass with aventurine inclusions
Maker
1700-1799
Title
Date of Production
Medium
Dimensions
Diameter: 12.9 cm
Accession Number
Mode of Acquisition
Credit
Copyright
Location
Keywords
Label Text
antinomy, into the molten glass and partially mixing it to create a marbled effect. This bowl also features inclusions of sparkly aventurine glass.The technique derives either from the Italian word avventura, meaning adventure, or ventura, meaning chance. Thought to be discovered by accident sometime before the 1560s, its process proved so unpredictable that its success has always
been attributed more to chance and practical experience than to scientific knowledge. Aventurine is made by combining copper oxide powder and chemical reducing agents with molten glass. In the furnace the copper oxide (CuO) undergoes a chemical reduction whereby its oxygen is removed to produce metallic copper (Cu).
Provenance
Exhibition History
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