7. TECHNICAL QUESTIONS ABOUT HISTORICAL GLASS (pulldown menu)
THE FOLLOWING PAGES DISCUSS THE TECHNICAL ASPECTS OF HISTORICAL GLASS.
Click on title questions to see the discussion pages
WHAT IS THE CHEMISTRY OF ROMAN GLASS ?
Roman Glass, Allaire Collection
WHAT IS THE DIFFERENCE BETWEEN OPAL, DICHROIC AND OPALESCENT GLASS?
104E Art Nouveau glass vase 1890-1900
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- 1925 Lalique Suzanne Art Deco Opalescent Glass
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- 1925 Lalique Suzanne Art Deco Opalescent Glass
WHAT IS THE IRIDESCENCE ON ANCIENT GLASS ?
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- 24R Roman double balsamarium 4-5th C
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- 32R Roman candlestick balsamarium 2-3rd Century 18.5 cm
WHAT IS THE IRIDESCENCE ON ANCIENT AND MODERN GLASS ?
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- Tiffany’s Favrile “Pansy” vase 1894
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- Hans van Rossum collection of glass
CLEANING ANCIENT AND ARCHAEOLOGICAL GLASS
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- Before
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- After
WEATHERED ARCHAEOLOGICAL GLASS
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- 22R before cleaning
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- 22R after first cleaning
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- 22R after second cleaning
