Iridium yog cov khoom siv tshuaj nrog lub cim Ir thiab atomic tooj 77. Ib qho nyuaj, nkig, silvery-dawb hloov hlau ntawm platinum pawg, iridium yog suav tias yog qhov thib ob-densest ib txwm tshwm sim hlau nrog qhov ntom ntom. ntawm 22.56 g / cm³ raws li txhais los ntawm kev sim X-ray crystallography.
iridium pom hnub no nyob qhov twg?
Hnub no, iridium tau ua lag luam rov qab los ua cov khoom lag luam ntawm tooj liab lossis npib tsib xee mining. Ore muaj iridium muaj nyob hauv Brazil, Tebchaws Meskas, Myanmar, South Africa, Russia thiab Australia.
pom iridium tshaj plaws nyob qhov twg?
Iridium-muaj ores muaj nyob hauv South Africa thiab Alaska, US, nrog rau hauv Myanmar (Burma), Brazil, Russia, thiab Australia. Nyob rau thaum xaus ntawm lub xyoo pua 20th South Africa yog lub ntiaj teb tus tsim khoom loj ntawm iridium.
Puas iridium pom hauv meteorites?
Vim tias iridium tsis tshua muaj nyob hauv ntiaj teb lub pob zeb tab sis muaj ntau nyob rau hauv meteorites, pawg Alvarez coj lub xub ntiag ntawm lub caij ntawm thaj tsam K-T ua pov thawj tias qhov cuam tshuam ntawm lub meteorite loj heev. coj mus rau qhov tuag ntawm dinosaurs.
