obsidian

• Substantivo que designa um vidro vulcânico natural de cor escura, formado pelo resfriamento rápido da lava, historicamente muito usado na fabricação de ferramentas e objetos decorativos.

A noun referring to a dark, natural volcanic glass formed from rapidly cooled lava, often used historically for tools and decorative objects.

incontável

1. Volcanic glassC1formal

   A dark, natural glass formed when lava cools rapidly without crystallizing, often used in tools and ornaments.

   Vidro vulcânico

   • Obsidian was used by ancient cultures to make sharp arrowheads.
   • The volcanic rock obsidian has a smooth, glassy texture.
   • Collectors prize obsidian for its deep black color and conchoidal fracture.

   Sinônimosvolcanic glass