All glassware pictured in this post was hand/mouth blown in Murano.
Glassware shaped by mouth or mold can be transparent, translucent or opaque and made in every color of an artist’s palette — and a variety of techniques combine colors in wondrous ways.
Colored glass is made by mixing non-metallic elements as sulphur and selenium and metallic oxides as copper, antimony, manganese, iron, nickel, cobalt and gold into batches of glass ingredients prior to fusion in a glass furnace.
Cobalt and ruby red are more expensive to make than other colors because oxides to make these colors are more costly.
Overlays of color may be transparent, translucent or opaque and of different thicknesses. If the top layer of glass is transparent, or if portions of the top layer are cut away, lower layers of color are revealed.
PATTERNS MADE FROM GLASS THREADS:
Lace-like patterns are made by combining and twisting glass rods so thin,
they’re called ‘threads’.
This paper weight design is millefiori, (1,000 flowers)– a classic design made from slices of colored canes made from glass threads embedded under clear glass.
From the 1870s through the 1920s, extraordinary contributions in the design and execution of glassware were made by Louis Comfort Tiffany, an American master of decorative arts who achieved glass colors and textures still unsurpassed. His stained glass windows, lamps, mosaics and Favrille glass are featured in the American Wing of the Metropolitan Museum of Art.
Pat Breen: EYEWITNESS TO QUALITY
MY NEXT POST: THE SURFACE OF GLASSWARE