During the Vietnam War my brother was stationed in Thailand. For
Chrismas he sent me a beautiful, albeit flawed [not Linde] blue star
sapphire ring set in silver.
I couldn't wear it very often because the silver was so soft that
the leaves that wrapped around the setting kept bending...Now some 35
years later, thanks to your posting, I know why the silver was softer
than what I was used to. I had always [with my American arrogance]
figured it was inferior.
BTW, one day when I wasn't wearing it my house was burglerized...