Ruby
Zogulitsa
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Natrual Ruby Loose Gems Baguette 1.5x3mm
Ruby [1] , kutanthauza kuti corundum ya mtundu wofiira, ndi mtundu wa corundum ndipo imakhala makamaka ndi aluminium oxide (AL 2O 3) .Mtundu wofiira umachokera ku chromium (CR), makamaka Cr2O3, zomwe zili nthawi zambiri zimakhala 0.1 ~ 3%, apamwamba kwambiri ndi 4%.Muli Fe, Ti ndi buluu adati Sapphire, mtundu wopanda chromium CR wamitundu ina ya corundum yomwe imadziwikanso kuti Sapphire.
