1. Kev soj ntsuam: Tej yam ntuj tso crystals feem ntau muaj impurities vim ib puag ncig influences thaum lawv tsim. Thaum pom tawm tsam lub hnub, tsaus muag, txawm, zoo kab rov tav lossis wispy, huab -zoo li suav nrog tuaj yeem pom. Cov muaju cuav, feem ntau yog ua los ntawm cov khoom tawg ntawm cov khoom siv lead ua tsis zoo los yog iav, polished, thiab xim, tsis muaj cov kab sib xws thiab huab -zoo li kev suav nrog.
2. Kev ntsuas tus nplaig: Txawm tias nyob rau hauv lub caij ntuj sov sweltering, licking ntawm lub ntuj siv lead ua yuav ua rau ib tug txias, refreshing hnov. Cov crystals cuav yuav tsis muab qhov kev xav txias no.
3. Kev Ntsuas Lub Teeb: Thaum muab tso rau hauv lub hnub ci, lub ntuj siv lead ua yuav tawm lub teeb zoo nkauj ntawm txhua lub kaum ntse ntse. Fake crystals yuav tsis.
4. Hardness Test: Ntuj crystals yog ib qho nyuaj. Maj mam khawb qhov saum npoo nrog lub pob zeb me me yuav tsis tawm ntawm lub cim; Yog hais tias ib tug kos yog sab laug, nws yog ib tug fake crystal.
5. Polarizing Microscope Test: Nyob rau hauv lub polarizing microscope, tig lub siv lead ua 360 degrees yuav pom plaub qhov ci thiab plaub qhov kev hloov tsaus; ib tug fake crystal yuav tsis qhia qhov kev hloov no.
6. Dichroism test: Ntuj amethyst qhia dichroism, thaum fake amethyst tsis.
7. Kev ntsuam xyuas iav: Tshawb xyuas lub amethyst nyob rau hauv lub teeb kis nrog 10x magnifying iav. Yog tias pom huab cua npuas, nws yuav luag yog qhov cuav.
8. Kev kuaj plaub hau: Muab cov amethyst rau ntawm cov plaub hau. Yog tias tib neeg lub qhov muag tuaj yeem pom ob daim duab ntawm cov plaub hau los ntawm amethyst, nws yog ntuj amethyst, feem ntau vim yog birefringence.
9. Thermal conductivity test: Kho lub thermal conductivity meter rau ntsuab (4 tuav). Ntuj amethyst yuav nce mus rau daj (2 bar), thaum fake amethyst yuav tsis sawv, los yog tsuas yog nce mus rau daj (1 bar) yog tias thaj tsam loj.
