Glass has RI 1.675-1.720, density 3.1-3.4, Abbe number 33-36.5 and composition (wt%): SiO2 40-46, Al2O3 0-3, TiO2 13-17, ZrO2 4-11, MgO 0-2, CaO 3-7, BaO 8-16, SrO 0-4, Nb2O5 2-10, Li2O 0-3, Na2O 2-7, K2O 3-8.
Origin
Unknown
Journal Title
Gb 2 000 492A, 10/1/79
Sector
Refractive Indexes
Class
RI 25