Cupellation furnace

Made:
1696-1700 in England

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Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Old cupellation furnace said to have been used by Sir Isaac Newton when Master of the Mint (1699-1727)
Science Museum Group
© The Board of Trustees of the Science Museum

Cupellation furnace, maker unknown, England, 1696-1700.

This furnace was used at the Royal Mint when Isaac Newton was Master. It has been described as Newton’s furnace, but was probably one of several in use there at the time. Cupellation is a metallurgical process which separates gold or silver from impurities by melting the impure metal in a cupel (a flat, porous dish) and then directing a blast of hot air on to it in a furnace such as this one. The precious metal left behind by the process was used to make coins at the Royal Mint.

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Details

Category:
Metallurgy
Object Number:
1876-3
type:
furnaces
credit:
Master of the Mint

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