Tawagar masu bincike daga Jami'ar Curtin, Jami'ar Yammacin Ostiraliya, da Jami'ar Geoscience ta China sun gano cewa za a iya kama wasu ƙananan zinare a tarko.cikin pyrite, yin 'zinariyar wawa' ya fi daraja fiye da yadda sunan sa ya nuna.
A cikitakardawanda aka buga a mujallarGeology,masanan kimiyya sun gabatar da bincike mai zurfi don fahimtar yanayin ma'adinai na zinariya da aka kama a cikin pyrite.Wannan bita - sun yi imani - na iya haifar da ƙarin hanyoyin hakar zinare masu dacewa da muhalli.
A cewar kungiyar, wannan sabon nau'in zinare na 'marasa ganuwa' ba a taba gane shi ba kuma ana iya ganinsa ne kawai ta hanyar amfani da kayan aikin kimiyya da ake kira atom probe.
A baya masu hakar zinare sun sami damar samun zinare a cikipyriteko dai a matsayin nanoparticles ko a matsayin pyrite-gold alloy, amma abin da muka gano shi ne cewa zinariya za a iya kuma za a iya daukar nauyin nanoscale crystal lahani, wakiltar wani sabon nau'i na 'marasa ganuwa' zinariya, "Jarumi bincike Denis Fougerouse ce a cikin kafofin watsa labarai sanarwa.
A cewar Fougerouse, gwargwadon yadda lu'ulu'u ya fi naƙasa, yawancin zinariya a can yana kulle cikin lahani.
Masanin kimiyyar ya bayyana cewa zinaren yana karbar bakuncin nanoscale lahani da ake kira dislocations - sau dubu ɗari ƙasa da faɗin gashin ɗan adam - kuma wannan shine dalilin da ya sa kawai ana iya ganin ta ta hanyar amfani da atom probe tomography.
Bayan gano su, Fougerouse da abokan aikinsa sun yanke shawarar neman tsarin da zai ba su damar fitar da ƙarfe mai daraja ta amfani da ƙarancin kuzari fiye da dabarun gargajiya na matsa lamba.
Zaɓin leaching, wanda ya ƙunshi yin amfani da ruwa don zaɓin narkar da gwal daga pyrite, ya zama kamar mafi kyawun zaɓi.
"Ba wai kawai tarwatsewar tarko na zinari ba ne, amma kuma suna yin aiki azaman hanyoyin ruwa waɗanda ke ba da damar zinari don zama 'leached' ba tare da shafar dukkan pyrite ba," in ji mai binciken.
Lokacin aikawa: Yuni-29-2021