Qhia qhov ua rau ntawm pob zeb diamond ntau lawm

Pob zeb diamond feem ntau hu ua "pob zeb diamond". Nws tseem yog lub npe hu ua daim ntawv tseem ceeb ntawm pob zeb diamond, uas yog cov ntxhia hauv cov pa roj carbon, ib qho allotrope ntawm carbon. Pob zeb diamond yog cov khoom tawv uas tshwm sim hauv qhov xwm txheej. Pob zeb diamond muaj ntau yam kev siv, xws li kos duab thiab khoom siv tes ua, txiav cov cuab yeej hauv kev lag luam. Graphite tuaj yeem tsim cov pob zeb hluavtaws nyob rau hauv qhov kub thiab txias. Lawv kuj yog pob zeb muaj nuj nqis.
Thawj pob zeb diamond pom pom tob hauv av (130--180 km) ntawm qhov kub siab (900--1300 C) thiab siab siab (45 -- 60) & 215. Crystallized ntawm 108Pa, lawv tsuas yog khaws cia hauv kimberlite lossis potassium magnesium lamprophyre, uas yog qhov qub.
Kimberlite pob zeb diamond, xws li Kimberlite mines hauv South Africa, tau tsim txog 3.3 billion xyoo dhau los, txog tib lub hnub nyoog li lub ntiaj teb. Thiab potassium-magnesium lamprophyre pob zeb diamond, xws li Argyle mines hauv Australia thiab Orab mines hauv Botswana, yog cov hluas, ntawm 1.58 billion thiab 990 lab xyoo raws li. Rau cov pob zeb diamond siv lead ua faus tob hauv lub ntiaj teb rau ntau lab xyoo dhau los, lawv yuav tsum tau pab cov roob hluav taws kub hnyiab, lava ntws nqa pob zeb diamond-muaj magma nyob ze ntawm lub ntiaj teb saum npoo, los yog tsiv mus nyob ntev mus nyob hauv dej xuab zeb. Lub qub daim ntawv thawj tubular ore, thaum lub tom kawg daim ntawv alluvial ore. Lwm hom pob zeb diamond tsim nyob rau hauv qhov chaw sab nraud, qhov chaw cuam tshuam "nanodiamonds", kuj yog ib qho khoom siv dawb huv "carbon".
Kos ob qho tib si minerals rau ib leeg, thiab ib qho ntawm lawv yuav raug puas tsuaj. Muaj cov ntxhia, tuaj yeem khawb tag nrho lwm cov ntxhia, tab sis tsis muaj cov ntxhia tuaj yeem khawb nws, qhov no yog pob zeb diamond. Nws tuaj yeem pom tias pob zeb diamond kev ntxhib los mos yog qhov nyuaj heev, yog cov khoom siv zoo.