adjective

vitreous

VIT-ree-us/ˈvɪtriəs/

Resembling glass in appearance or properties.

A vitreous glaze gives the ceramic bowl a glossy finish.

A broken piece of ceramic pottery contrasts a smooth, translucent, glasslike turquoise glaze with its exposed rough, matte clay body.
Etymology

The glass root makes vitreous a word of resemblance, not necessarily composition. Something vitreous may look translucent like glass or share properties such as brittleness without actually being glass.

In context

TMartScience2:43
this has a very vitreous or glass like luster similar to the quartz here's a piece of calcite that also has a vitreous luster
Mineral Luster

More examples

  • Quartz has a vitreous luster that catches the light.
  • Rapidly cooling lava can form dark, vitreous rock.
  • The tile's vitreous coating creates a smooth, waterproof surface.

Forms

vitreous

Similar words

glassy
Often emphasizes a smooth, shiny surface rather than composition.
glasslike
A more everyday term for resemblance to glass.