Murano Glass

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The Italian glass industry dates to the 8th century. In 1291 the Venetian glassmakers were ordered to move to the island of Murano to prevent fire destroying Venice. Glass artisans handed down their knowledge and skills through the generations. The Murano artists were forever innovating, and they are known for their use of color and intricate glass decorations.

Murano Glass Polished
Murano Glass Classification
Common Name Murano Glass
Species Glass
Murano Glass Optical Properties
Transparency Opaque-Transparent
Dispersion Strength: Moderate if Contains Lead Value: 0.009
Refractive Index 1.460-1.800
Optic Character NA
Optic Sign NA
Polariscope Reaction Anomalous Double Refraction (ADR), Singly Refractive (SR)
CCF Reaction Red if colored by cobalt
Pleochroism None
Murano Glass Characteristic Physical Properties
Hardness 4.5-6.5
Streak None
Toughness Poor
Inclusions Gas bubbles, separations between glass rods, swirls of color
Luster Vitreous
Fracture None
Cleavage Conchoidal, Granular, Splintery
Murano Glass Chemistry & Crystallography
Crystal System NA

Murano Glass Colors

  • Bi-color Murano Glass Bi-color
  • Yellow Murano Glass Yellow
  • White Murano Glass White
  • Red Murano Glass Red
  • Purple Murano Glass Purple
  • Pink Murano Glass Pink
  • Orange Murano Glass Orange
  • Multi-color Murano Glass Multi-color
  • Green Murano Glass Green
  • Gray Murano Glass Gray
  • Colorless Murano Glass Colorless
  • Brown Murano Glass Brown
  • Blue Murano Glass Blue
  • Black Murano Glass Black

Alternate Names

Millefiori, Murrine, Sommerso

Countries of Origin



Normal care

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Tim Matthews


Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.