Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6806003
Is Reference of Opalmasse-da#Sense
Masse d'opale-fr#Sense
Mass opal-en#Sense
Opal-Masse-de#Sense
Massa de opala-pt#Sense
Opaalmassa-nl#Sense
Massa di opale-it#Sense
Masa de ópalo-es#Sense