Flint glass

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Celery glass
MFA# 1975.20

Description

An optical quality glass with a high refractive index and low dispersion. Flint glass was a typically a Potash-lead glass used for optical lenses and crystal glassware. However, since the manufacture and disposal of lead glass are a source of pollution, modern flint glass contain a wide variety of non-lead metal oxides including Titanium dioxide and Zirconium oxide.

See also crystal.

Synonyms and Related Terms

cristal de chumbo com potássio (Port.)

Bishop mug
MFA# 1995.765

Physical and Chemical Properties

Melting Point 630 C (softens)
Density 2.9-5.9 g/ml
Refractive Index 1.45-2.00

Resources and Citations

  • Wikipedia: Flint glass (Accessed Oct. 2023)
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 383
  • Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972
  • Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996

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