925 Necklace With Blue Beads 14.5 In. Long Plus Extender

925 Necklace With Blue Beads 14.5 In. Long Plus Extender. Necklace is very nice. has calcium on it. But I’m not a gemologist or geologist so I’m not sure. But it needs a cleaning to shine. The blue beads are very pretty with with thread like shine thru it. This is a very nice necklace.
(180) for my use