Spinel har doim o'tmishdagi yoqut sifatida qabul qilingan, chunki u odatda yoqut bilan ham mavjud, va uning tashqi ko'rinishi yoqutlarga o'xshaydi. Tarixdagi ba'zi mashhur yoqutlar aslida shpinellardir. Masalan, the Black Prince's Ruby in the British crown and the Timur Ruby inlaid on a diamond chain are actually red spinels. tosh. Spinel used [...]
