Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Vitreux-fr#Sense
Vitreous-en#Sense
Stikliškas-lt#Sense
Vidrado-pt#Sense
Vetroso-it#Sense
Vítreo-es#Sense
Υαλώδης-el#Sense
Glasagtig-da#Sense
Glasartig-de#Sense
Doorzichtig-nl#Sense