Yintoni eyona nto iphambili corundum?

Icandelo eliphambili le-corundum yi-aluminium oxide.

I-corundum, igama elivela eIndiya, ligama lemineralogical. Kukho iintlobo ezintathu eziphambili ze-homogeneity ye-corundum Al2O3, okuyi-α-Al2O3, β-Al2O3, kunye ne-γ-Al2O3. Ukuqina kwe-corundum kukwesibini kuphela kwidayimane.

I-Corundum ilitye elinqabileyo elenziwe kwiikristale ze-alumina (Al2O3). I-Corundum exutywe ne-metallic chromium ibomvu ngokuqaqambileyo kwaye ibizwa ngokuba yirubhi; ngelixa i-corundum eluhlaza okwesibhakabhaka okanye engenambala ngokuqhelekileyo ihlelwa njengesafire.

ICorundum ikwindawo ye-9 kwitafile yobulukhuni be-Mohs. I-gravity ethile yi-4.00, kwaye ine-hexagonal column lattice structure. Ngenxa yokuqina kwayo kunye nexabiso eliphantsi kunedayimani, i-corundum iye yaba yinto efanelekileyo ye-sandpaper kunye nezixhobo zokusila.

I-Corundum ine-glass luster, ubunzima 9. Umlinganiselo ngu-3.95-4.10. Yenziwe phantsi kweemeko zokushisa okuphezulu, i-aluminium ecebileyo kunye ne-silicon C empofu, kwaye inxulumene kakhulu ne-magmatism, i-metamorphism yoqhagamshelwano kunye ne-metamorphism yengingqi.

I-Corundum yimathiriyeli eyenziwe ngumntu eyenziwe kwi-bauxite njengeyona nto iphambili ekrwada kwiziko lezimayini. Ingasetyenziselwa njengento enqabileyo kunye ne-refractory. I-corundum emhlophe enobunyulu obuphezulu ibizwa ngokuba yi-white corundum, kunye ne-brown corundum enomlinganiselo omncinci wokungcola kuthiwa yi-brown corundum.

Kukho ubukhulu becala iintlobo ezintathu ze-homogeneity ye-corundum Al2O3, ezizezi α-Al2O3, β-Al2O3, γ-Al2O3, kunye ne-η-Al2O3 (i-equaxial crystal system) kunye ne-ρ-Al2O3 (i-crystal system) ngokwe-X-ray diffraction analysis. Inkqubo ayiqinisekanga), χ-Al2O3 (i-hexagonal system), κ-Al2O3 (i-hexagonal system), δ-Al2O3 (inkqubo ye-tetragonal), θ-Al2O3 (inkqubo ye-monoclinic). I-Corundum inemibala emininzi, kuquka engenambala, emhlophe, igolide (i-pigment ion Ni, Cr), i-yellow (pigment ion Ni), ebomvu (i-pigment ion Cr), eluhlaza okwesibhakabhaka (i-pigment ion Ti, Fe), eluhlaza (i-pigment ion Co, i-Ni) , V), omfusa (Ti, Fe, Cr), omdaka, omnyama (i-pigment ion Fe, Fe), i-blue-violet phantsi kwesibane se-incandescent, umphumo obomvu-omfusa phantsi kwesibane se-fluorescent (i-pigment ion V).