I-Garnet, ebizwa ngokuba yiziyawu okanye ziyawu kwi-China yakudala, liqela leeminerali eziye zasetyenziswa njengamatye anqabileyo kunye ne-abrasives kwixesha lobhedu.Igarnet eqhelekileyo ibomvu.I-Garnet IsiNgesi "i-garnet" ivela kwisiLatini "granatus" (ingqolowa), enokuthi ivela kwi "Punica granatum" (irharnati).Sisityalo esinembewu ebomvu, kwaye ukumila kwayo, ubukhulu kunye nombala kufana nezinye iikristale zegarnet.
Iigarnet eziqhelekileyo zihlelwe kwiintlobo ezintandathu ngokwemichiza yazo, ezizezi, i-pyrope, i-almandine, i-spessartite, i-andradite, i-Grossular, kunye neentlobo ze-tsavorite, i-Hessonite, kunye ne-uvarovite.Igarnet yenza uthotho lwesisombululo esiluqilima ezibini: (1) intsimbi ebomvu yegarnet aluminiyam igarnet manganese aluminiyam garnet kunye;(2) I-Calcium chromium garnet i-calcium i-aluminium garnet i-calcium iron garnet.IGarnet ayinamahluko webakala kwihlabathi.Izinto ezibizwa ngokuba zii-“A” zahlulwa ngokwezimvo zomntu.I-garnet efanayo inokuxelela amanani ahlukeneyo kwizandla ezahlukeneyo.[1]
Igama | igarnet yendalo emthubi |
Indawo yeMvelaphi | eTshayina |
Uhlobo lwamatye anqabileyo | Ngokwendalo |
Umbala wamatye anqabileyo | lubhelu |
Izinto zelitye elinqabileyo | igarnet |
Ubume belitye elinqabileyo | Round Brilliant Cut |
Ubungakanani belitye elinqabileyo | 3.0mm |
Ubunzima belitye elinqabileyo | Ngokobukhulu |
Umgangatho | A+ |
Imilo ekhoyo | Umjikelo/Isikwere/Ipere/umbhoxo/imilo yeMarquise |
Isicelo | Ukwenza izacholo/impahla/i-pandent/ringi/wotshi/indlebe/intsimbi yomqala/isacholo |
Ukubunjwa kweekhemikhali zegarnet kuyinkimbinkimbi, kwaye izinto ezahlukeneyo zenza udibaniso oluhlukeneyo, ngoko ke uluhlu lweentsapho zegarnet ezinokwakheka okufanayo kunye nomfanekiso zenziwe.I-formula jikelele yi-a3b2 (SiO4) 3, apho i-a imele i-divalent elements (i-calcium, i-magnesium, isinyithi, i-manganese, njl.) kunye ne-B imele i-trivalent elements (i-aluminium, isinyithi, i-chromium, i-titanium, i-vanadium, i-zirconium, njl.).Okuqhelekileyo yi-magnesia aluminium garnet, equkethe i-chromium kunye nentsimbi kunye negazi elibomvu, elibomvu elibomvu kunye ne-maroon;Eyesibini yintsimbi yealuminiyam garnet, ebomvu ngokumfusa.Ikristale enophuhliso olubandakanywayo inokukrola ukukhanya kweenkwenkwezi ezine-dimensional;I-Magnesium iron garnet yi-rose rose emfusa ebomvu, enye yeentlobo ezibalulekileyo ze-garnet gemstones;I-calcium aluminium garnet iqulethe i-trace vanadium kunye ne-chromium ion, ngoko ibizwa ngokuba yi-top-grade green.
Ngenxa yeradiyasi efanayo ye-cations trivalent, ukutshintshwa kwe-isomorphic kulula ukwenzeka phakathi kwabo.Ii-divalent cations zahlukile.Ngenxa yokuba i-CA ine-radius enkulu kune-mg, i-Fe kunye ne-Mn plasma, kunzima ukuyibuyisela nge-isomorphism.Ngoko ke, i-garnet idla ngokwahlulahlulwe ibe ngamacandelo amabini:
(1) Uchungechunge lweAluminiyam: mg3al2 (SiO4) 3 - fe3al2 (SiO4) 3 - mn3al2 (SiO4) 3
Luluhlu lwe-isomorphic oluqulunqwe ngee-divalent cations ezifana ne-Mg, Fe kunye ne-Mn kunye ne-radius encinci kunye ne-trivalent cations ezifana ne-al.Iindidi eziqhelekileyo ziquka i-magnesium aluminium garnet, i-iron aluminium garnet kunye ne-manganese garnet ye-aluminium.
(2)Uthotho lweCalcium: ca3al2 (SiO4) 3- Ca3Fe2 (SiO4) 3- ca3cr2 (SiO4) 3
(3) Luluhlu lwe-isomorphic olulawulwa yi-divalent cation CA kunye ne-radius enkulu.Ezona ziqhelekileyo yi-calcium aluminium garnet, i-calcium iron garnet kunye ne-calcium chromium garnet.Ukongeza, i-lattice yezinye iigarnet idityaniswe ne-OH ion ukwenza i-subspecies enamanzi, njenge-water calcium aluminium garnet.Ngenxa ye-isomorphic substitution ebanzi, ukubunjwa kweekhemikhali zegarnet ngokuqhelekileyo kunzima kakhulu.Ukubunjwa kwegarnet kwindalo ngokuqhelekileyo yimeko yenguqu ye-isomorphic substitution, kwaye kukho iigarnet ezimbalwa ezinamalungu okugqibela.[2]