Glass Terms & Techniques
A comprehensive guide to lampworking methods, artist techniques, and collector terminology curated by our Tacoma glass gallery.
Electroforming
A metal forming process that modifies glass components through electrodeposition on an item or form. The part is produced by a chemical disposition of a conductive layer on a base form. All of our electroformed pieces are copper plated and vary in different custom patinas.
Heady Glass
A term used to distinguish high-quality blown glass art that features bold, daring, and intricate designs while maintaining full functionality. These are unique, one-of-a-kind pieces that are highly prized and collected by connoisseurs worldwide.
Scientific Glass
Refers to precision borosilicate glass pieces crafted with standardized ground glass-on-glass joints, laboratory-grade tolerances, and clean functional lines.
Borosilicate Glass (Boro)
A premium type of glass made with silica and boron trioxide as the main constituents, renowned for superior thermal shock resistance, extreme durability, and vibrant color compatibility.
Fumed Glass
Created when a glass artist vaporizes pure .999 fine silver or 24k gold into the flame using a molten glass rod. As the vapor deposits microscopic layers of metals onto the glass, it creates distinctive iridescent hues that shift and change color over time.
Water Pipe (Bong)
A fluid filtration device used for cooling and purifying smoke through water for a smooth, enjoyable herbal experience.
Wig Wag
A decorative lampworking technique that creates intricate, high-contrast wavy patterns and switchbacks by layering and repeatedly twisting sections of colored glass.
Reticello
A traditional Venetian glassblowing technique involving two opposing spiral cane layers crisscrossing to form a fine lattice mesh containing a tiny trapped air bubble in each diamond.
Linework
A style of glassblowing featuring crisp, sharp, parallel colored lines running through the piece in complex swirls, twists, or symmetrical patterns.
Millie (Millefiori)
Short for Millefiori ("a thousand flowers" in Italian). Artists layer colored glass rods to build detailed pictorial images or geometric designs, pull the cane into long rods, and slice them into coins to be fused into glass pieces.
Honeycomb
A visual depth pattern created by trapping precise air bubbles inside layered glass in a hexagonal matrix resembling a natural honeycomb.
Cold Work
Any modification process performed after the glass has fully annealed and cooled, including diamond lapidary faceting, cutting, engraving, sand carving, or optical polishing.
Reversal
A master glass technique where a decorative bubble of linework or cane is collapsed and sucked back through itself, producing dense, perfectly centered, kaleidoscopic starburst patterns.
Perc (Percolator)
An internal filtration and diffusion structure inside a water pipe that breaks smoke into thousands of micro-bubbles, dramatically increasing surface area for maximum cooling.
Dichroic Glass (Dichro)
A specialized glass coated with microscopic layers of metal oxides that cause light to reflect and refract with intense, shimmering chromatic sparkle.
Sandblasting
A finishing process using high-pressure abrasive media to etch, frost, or deeply carve patterns into the glass surface for tactile matte texture and visual contrast.