Duwatsu masu ɗumbin halitta Yellow Garnet Zagaye 3.0mm

Cikakken Bayani:

Garnet, wanda ake kira ziyawu ko ziyawu a tsohuwar kasar Sin, rukuni ne na ma'adanai da aka yi amfani da su azaman duwatsu masu daraja da abrasives a zamanin tagulla.Garnet gama gari ja ne.Garnet Turanci "garnet" ya fito daga Latin "granatus" (hatsi), wanda zai iya fitowa daga "Punica granatum" (ruman).Ita ce tsiro mai jajayen iri, kuma siffarta, girmanta da launinta sun yi kama da wasu lu'ulu'u na garnet.
Garnets na gama gari an kasasu zuwa nau'i shida bisa ga tsarin sinadaran su, wato, pyrope, almandine, spessartite, andradite, Grossular, kuma bambance-bambancen su ne tsavorite, Hessonite, da uvarovite.Garnet yana samar da jerin ingantattun mafita guda biyu: (1) jan garnet ƙarfe aluminum garnet manganese aluminum garnet da;(2) Calcium chromium garnet calcium aluminum garnet calcium iron garnet.Garnet ba shi da daraja a duniya.An bambanta abin da ake kira "A" bisa ga ra'ayi na mutum.Garnet iri ɗaya na iya faɗi lambobi daban-daban a hannaye daban-daban.[1]

Manyan abubuwa:

Abubuwan sinadaran garnet yana da ɗan rikitarwa, kuma abubuwa daban-daban suna yin haɗe-haɗe daban-daban, don haka an kafa jerin iyalai na garnet masu kama da rubutu da hoto.Gabaɗaya dabara ita ce a3b2 (SiO4) 3, inda wani ke wakiltar abubuwa masu divalent (alli, magnesium, iron, manganese, da dai sauransu) kuma B yana wakiltar abubuwa masu mahimmanci (aluminum, baƙin ƙarfe, chromium, titanium, vanadium, zirconium, da sauransu).Na kowa shine magnesia aluminum garnet, wanda ya ƙunshi chromium da baƙin ƙarfe kuma ja jini ne, ja mai ja da maroon;Na biyu shi ne ƙarfe aluminium garnet, wanda ja ne mai ja.Lu'ulu'u tare da haɓaka haɓakawa na iya zana hasken tauraro mai girma huɗu;Magnesium iron garnet shine haske mai fure mai launin ja, wanda shine ɗayan mahimman nau'ikan gemstones na garnet;Calcium aluminum garnet yana ƙunshe da alamar vanadium da ions chromium, don haka ana kiran shi nau'in kore mai daraja.
Saboda irin wannan radius na trivalent cations, maye gurbin isomorphic yana da sauƙin faruwa a tsakanin su.Divalent cations sun bambanta.Saboda CA yana da radius mafi girma fiye da MG, Fe da Mn plasma, yana da wuya a maye gurbin shi da isomorphism.Saboda haka, garnet yawanci ya kasu kashi biyu:
(1) Aluminum jerin: mg3al2 (SiO4) 3 - fe3al2 (SiO4) 3 － mn3al2 (SiO4) 3
Silsilar isomorphic ce wacce ta ƙunshi cations divalent kamar Mg, Fe da Mn tare da ƙananan radius da ƙananan cations kamar al.Nau'in gama gari sun haɗa da garnet aluminum aluminum, ƙarfe aluminum garnet da manganese aluminum garnet.
(2) Jerin Calcium: ca3al2 (SiO4) 3 - Ca3Fe2 (SiO4) 3 － ca3cr2 (SiO4) 3
(3) Silsilar isomorphic ce ta mamaye divalent cation CA tare da babban radius.Abubuwan da aka sani sune aluminium garnet, calcium iron garnet da calcium chromium garnet.Bugu da ƙari, an haɗa lattice na wasu garnets tare da OH ions don samar da nau'o'in ruwa, kamar ruwa calcium aluminum garnet.Saboda babban canji na isomorphic, abun da ke tattare da sinadarai na garnet yawanci yana da rikitarwa sosai.Abubuwan da ke tattare da garnet a cikin yanayi yawanci shine yanayin canji na maye gurbin isomorphic, kuma akwai 'yan garnets tare da sassan memba na ƙarshe.[2]