Ibara rya Natrual Spinel Irekuye Amabuye y'agaciro 1.0mm

Ibicuruzwa birambuye:

Umutukuifite rubavu-isa neza itukura nziza, nayo ihabwa agaciro cyane.Yari yambaye amakanzu ya papa wa Vatikani, umwami w'Uburusiya, umuhungu wa Irani, n'ikamba ry'umwami w'ingoma y'Ubwongereza.Umuganwa wamamaye wa karat 170 yumukara wibikomangoma byubwongereza byaje kumenyekana nka spinel.Mu ntambara yo mu 1415 yo muri 1415 ya Agincourt, aho umwami w’Ubwongereza, Henry V w’Ubwongereza, yakubise ingabo z’Abafaransa inshuro nyinshi nk’intambara ye bwite ya Agincourt, imitako yo mu ngofero y’umwami Henry V w’Ubwongereza yari igikomangoma cyirabura. 'Sruby, n'umujenerali w'Ubufaransa bazunguza ishoka ku mutwe w'umwami.Mu buryo bw'igitangaza, ishoka yahagaritswe na SPINEL, ikiza Henry V ubuzima bw'Ubwongereza, kandi igitangaje ni uko intambara, bake bemezaga ko bishoboka, nayo yatsinze mu buryo bw'igitangaza.Mu ngoma ya Qing yo mu Bushinwa, urukiko rwemeje ko uwo muyobozi ari we mwanya wa mbere, imitako yambitswe ingofero yari Ruby, iya kabiri yari korali itukura, iya gatatu ni Hotan Jade, n'ibindi.Abantu basobanukiwe umwanya wabo hamwe n amanota yabo bareba imitako yikamba yingofero yabandi.Ingoma ya Qing irangiye, umucuruzi uzwi cyane Hu Xueyan yitwaga “Umucuruzi ufite ikamba ritukura”.Muri iki gihe cya none, abahanga mu by'imitako bagaragaje amasaro menshi atukura y'abayobozi b'ingoma ya Qing nka SPINEL, ntabwo ari amabuye.Ubwiza bwa SPINEL bwakinnye urwenya ku byamamare bitabarika, byaba ibya kera ndetse n'ibigezweho, mu gihugu ndetse no mu mahanga.

Ingingo ugomba kumenya

SPINEL ifite ubukana buhanitse (Mor hardness is 8) kandi ntabwo ikeneye kubungabungwa.Birakwiriye kwambara buri munsi.Gukata neza birashobora kuzana ibitekerezo bikarishye hamwe nibara ryiza rya spinel.Nubwo abantu bumvise nabi spinel mumyaka ibihumbi, uyumunsi abantu benshi bamenya agaciro kayo, kubera ko ubwiza bwayo bushobora kugereranywa nubwa rubavu, none kuki bidashobora guhabwa agaciro kubwiza bwarwo?