Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of In France:glass with n D between 1.525 and 1.545-en#Sense
Kristallijn-nl#Sense
Kristalliinilasi-fi#Sense
Krystalin-da#Sense
Cristallin-fr#Sense
Kristalliini-fi#Sense
Cristalino-pt#Sense