The Achille Heel of a Wonderful Material: Toughened Glass | glassonweb.com
Microphotographs showing several kind of silicate glass inclusions,... | Download Scientific Diagram
Nickel Sulfide Inclusion and Spontaneous Glass Breakage
Glass and Glazing - Sandberg
Inclusions in Other Gems and Minerals in ruby, Inclusions in sapphire, Inclusions in emerald, Inclusion in spinel, Inclusions in peridot, Inclusions in semi-precious gemstone, Asian Institute of Gemological Sciences