Ruby
Alaabta
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Dabciga Dabiiciga ah ee Ruby dabacsan Baguette 1.5x3mm
Ruby [1], oo macnaheedu yahay corundum midabka cas, waa nooc ka mid ah corundum oo ka kooban ugu horrayn aluminium oxide (AL 2O 3).Midabka cas wuxuu ka yimaadaa chromium (CR) , badi Cr2O3, waxa ku jira guud ahaan 0.1 ~ 3% , kan ugu sarreeya waa 4% .Ka kooban Fe, Ti iyo buluug ayaa sheegay in Sapphire, non-chromium CR midabka midabada kale ee corundum sidoo kale si wadajir ah loo yaqaan Sapphire.
