Natrual Gems Yellow Garnet Round 3.0mm

Product Detail:

Garnet, hu ua ziyawu los yog ziyawu nyob rau hauv Suav teb thaum ub, yog ib pawg ntawm cov zaub mov uas tau siv los ua gemstones thiab abrasives nyob rau hauv lub hnub nyoog bronze.Hom garnet yog liab.Garnet English "garnet" los ntawm Latin "granatus" (grain), uas tuaj yeem los ntawm "Punica granatum" (pomegranate).Nws yog cov nroj tsuag nrog cov noob liab, thiab nws cov duab, qhov loj me thiab xim zoo ib yam li qee cov garnet crystals.
Cov garnets nquag tau muab faib ua rau hom raws li lawv cov tshuaj muaj pes tsawg leeg, uas yog, pyrope, almandine, spessartite, andradite, Grossular, thiab cov variants yog tsavorite, Hessonite, thiab uvarovite.Garnet ua ob yam kev daws teeb meem: (1) liab garnet hlau aluminium garnet manganese aluminium garnet thiab;(2) Calcium chromium garnet calcium aluminium garnet calcium hlau garnet.Garnet tsis muaj qhov sib txawv hauv ntiaj teb.Qhov hu ua "A's" yog qhov txawv raws li tus kheej xav.Tib garnet tuaj yeem qhia ntau tus lej sib txawv ntawm tes.[1]

Main Cheebtsam:

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm garnet yog qhov nyuaj, thiab cov ntsiab lus sib txawv tsim kev sib txawv, yog li cov tsev neeg garnet zoo sib xws thiab cov duab tau tsim.Cov mis nyuj dav dav yog a3b2 (SiO4) 3, qhov twg ib tug sawv cev rau divalent ntsiab (calcium, magnesium, hlau, manganese, thiab lwm yam) thiab B sawv cev rau trivalent ntsiab (aluminium, hlau, chromium, titanium, vanadium, zirconium, thiab lwm yam).Feem ntau yog magnesia aluminium garnet, uas muaj chromium thiab hlau ntsiab thiab yog ntshav liab, purplish liab thiab maroon;Qhov thib ob yog hlau aluminium garnet, uas yog xim liab.Cov siv lead ua nrog kev txhim kho suav nrog tuaj yeem ua kom pom lub hnub qub plaub-dimensional;Magnesium hlau garnet yog lub teeb liab liab liab, uas yog ib qho tseem ceeb ntawm garnet gemstones;Calcium aluminium garnet muaj trace vanadium thiab chromium ions, yog li nws yog hu ua qib ntsuab ntau yam.
Vim lub vojvoog zoo sib xws ntawm trivalent cations, isomorphic hloov tau yooj yim tshwm sim ntawm lawv.Divalent cations txawv.Vim tias CA muaj lub vojvoog loj dua li mg, Fe thiab Mn plasma, nws nyuaj rau hloov nws nrog isomorphism.Yog li ntawd, garnet feem ntau muab faib ua ob ntu:
(1) Aluminium series: mg3al2 (SiO4) 3 － fe3al2 (SiO4) 3 － mn3al2 (SiO4) 3
Nws yog ib qho isomorphic series muaj li ntawm divalent cations xws li Mg, Fe thiab Mn nrog lub vojvoog me me thiab trivalent cations xws li al.Ntau hom muaj xws li magnesium aluminium garnet, hlau aluminium garnet thiab manganese aluminium garnet.
(2) Calcium series: ca3al2 (SiO4) 3 － Ca3Fe2 (SiO4) 3 － ca3cr2 (SiO4) 3
(3) Nws yog ib qho isomorphic series dominated los ntawm divalent cation CA nrog lub vojvoog loj.Cov feem ntau yog calcium aluminium garnet, calcium hlau garnet thiab calcium chromium garnet.Tsis tas li ntawd, cov lattice ntawm qee cov garnets kuj tseem txuas nrog OH ions los tsim cov subspecies aqueous, xws li dej calcium aluminium garnet.Vim yog qhov dav isomorphic hloov pauv, cov tshuaj muaj pes tsawg leeg ntawm garnet feem ntau nyuaj heev.Qhov muaj pes tsawg leeg ntawm garnet nyob rau hauv cov xwm txheej feem ntau yog qhov hloov pauv ntawm isomorphic hloov pauv, thiab muaj ob peb garnets nrog cov tswv cuab kawg.[2]