Re: Black prince's Ruby in Imperial Crown. Knowledge that it is a spinel since at least 1935 Archived Message
Posted by Beth1 on February 7, 2015, 5:26 am, in reply to "Re: Black prince's Ruby in Imperial Crown. Knowledge that it is a spinel since at least 1935"
Thank you Nellie, I have seen the Black Prince's Ruby being described as a Balas Ruby previously, but I hadn't realised it was a term for a red spinel. Thank you for the reference. I'll have a good time reading it after I get to the library.
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