Pob zeb diamond khoom yam ntxwv

Hardness
Mohs hardness ntawm 10, tshiab Mohs hardness ntawm 15, microhardness ntawm kwv yees li 7000-10000 kg / mm², microhardness 1000 zaug siab dua quartz thiab 150 zaug siab dua corundum. Pob zeb diamond hardness yog kev taw qhia; Lub hardness ntawm lub ntsej muag octahedral siv lead ua yog ntau dua li ntawm lub ntsej muag rhombic dodecahedral siv lead ua, thiab qhov nyuaj ntawm lub ntsej muag rhombic dodecahedral siv lead ua yog ntau dua li ntawm lub ntsej muag hexahedral.
Vim nws qhov hardness heev, txiav thiab ua cov pob zeb diamond yuav tsum tau ua nrog pob zeb diamond hmoov lossis lasers. Qhov ceev ntawm pob zeb diamond yog 3.52 g / cm³, qhov taw qhia qhov taw qhia yog 2.417 (ntawm 589 nm wavelength), thiab qhov tawg yog 0.044.
Raws li cov kws tshaj lij, AM-III muaj qhov ntom ntom piv rau pob zeb diamond, thiab Vickers hardness (HV) txog li 113 GPa, muaj peev xwm khawb ib qho - siv lead ua pob zeb diamond.

 

Xim
Pob zeb diamond tuaj ntau yam xim, los ntawm tsis muaj xim mus rau dub, nrog cov xim tsis muaj xim yog qhov xav tau tshaj plaws. Lawv tuaj yeem yog pob tshab, translucent, lossis opaque. Muaj ntau lub pob zeb diamond muaj xim daj, feem ntau yog vim impurities. Pob zeb diamond muaj qhov ntsuas siab siab heev thiab muaj zog tawg, uas yog vim li cas lawv cuam tshuam cov xim dazzling array. Pob zeb diamond emit xiav-ntsuab fluorescence nyob rau hauv X-ray irradiation. Thawj pob zeb diamond deposits tsuas yog pom nyob rau hauv kimberlite kav los yog ob peb poov tshuaj -magnesium lamprophyres. Kimberlite yog lawv niam lawv txiv pob zeb; Pob zeb diamond pom nyob rau lwm qhov tau raug thauj los ntawm cov dej ntws, dej khov, thiab lwm yam. Pob zeb diamond feem ntau yog granular. Thaum rhuab mus rau 1000 degree, pob zeb diamond maj mam hloov mus rau hauv graphite.