Alexandrite na roba - Miƙewa - Czochralski - Crystal Rise - Bidiyo
Abubuwan:
Alexandrite yana daya daga cikin manyan duwatsu masu ban mamaki.
Sayi duwatsu masu daraja na halitta a cikin shagon mu na gemstone
roba alexandrite
Babban bambanci tsakanin alexandrite da sauran gemstones shine ikonsa na musamman don canza launi dangane da hasken yanayi. Alexandrite koren shuɗi ne ko ciyawar ciyawa lokacin da ake amfani da farar hasken wucin gadi na wucin gadi, amma ya juya shuɗi ko ja a cikin hasken rana ko kyandir.
Ana kiran wannan sabon abu da sakamako na alexandrite kuma ana amfani dashi da yawa tare da wasu ma'adanai waɗanda zasu iya canza launi. Misali, garnets waɗanda zasu iya canza launi ana kiran su alexandrite garnets.
Alexandrite iri-iri ne na ma'adinai na chrysoberyl. Sakamakon canjin launi da ba a saba gani ba shine saboda kasancewar ions chromium a cikin lattice crystal. A halin yanzu, ana ɗaukar alexandrite na halitta ɗaya daga cikin mafi kyawun kyawawan duwatsu masu daraja.
Tabbas, wannan ya haifar da bayyanar karya a kasuwa wanda kawai dan kadan yayi kama da asalin dutse, saboda ba sa nuna kyakkyawan tasirin canjin launi da wasan haske a cikin alexandrite na halitta. Corundum karya sun zama ruwan dare gama gari.
Tsarin Czochralski (wanda aka fitar)
Tsarin Czochralski shine hanyar haɓaka kristal da ake amfani da ita don samar da lu'ulu'u guda ɗaya na semiconductors (misali silicon, germanium da gallium arsenide), karafa (misali palladium, platinum, azurfa, zinariya), gishiri da duwatsu masu daraja. Sunan tsarin ne bayan masanin kimiyya dan kasar Poland Jan Czochralski, wanda ya kirkiro hanyar a cikin 1915 yayin da yake nazarin adadin karafa.
Ya yi wannan binciken ne kwatsam, a lokacin da yake bincike kan adadin karafa, inda maimakon ya tsoma alkalami a cikin tawada, ya yi haka ne a cikin narkakkar dala, ya gano zaren dala, wanda daga baya ya zama kristal guda daya.
Mafi mahimmancin aikace-aikacen na iya zama haɓakar manyan ingots na silindi ko sassa na silicon crystal guda ɗaya da ake amfani da su a cikin masana'antar lantarki don samar da na'urorin semiconductor kamar haɗaɗɗun da'irori.
Sauran semiconductor kamar gallium arsenide kuma ana iya girma ta wannan hanyar, kodayake ƙananan ƙarancin lahani a cikin wannan yanayin ana iya samun su ta amfani da bambance-bambancen hanyar Bridgman-Stockbarger.
Alexandrite roba - Czochralski
Formula: BeAl2O4:Cr3+
Crystal tsarin: orthorhombic
Taurin (Mohs): 8.5
Yawan yawa: 3.7
Fihirisar magana: 1.741-1.75
Shafin: 0.015
Kun hada da: abinci kyauta. (zaɓi maɓalli daga alexrite na halitta: hazo, fasa, ramuka, haɗaɗɗun abubuwa da yawa, quartz, biotite, fluorite)
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