I-Gauin, i-gauinite noma i-gauinite - i-tectosilicate mineral ne-sulfate - ividiyo

I-gauine, i-gauinite noma i-gauinite iyi-sulfate tectosilicate mineral ene-Na3Ca (Si3Al3) O12 (SO4) iphethini yethiphu.

Thenga amatshe emvelo esitolo sethu

Kungaba kufika ku-5 wt. I-K2O, kanye ne-H2O ne-Cl. I-feldspar futhi ilungu leqembu le-sodalite. Itshe laqala ukuchazwa ngo-1807 ngokususelwa ezibonelweni ezitholakala odakeni lweVesuvian eMonte Somma, e-Italy, futhi laqanjwa ngo-1807 nguBrunn-Neergard kuqanjwa umdwebi wekristalu waseFrance uRené Just Gahuy (1743-1822). Ngezinye izikhathi isetshenziswa njengegugu.

ukubukeka

Icwebezela ohlelweni lwe-isometric, yakha amakristalu e-dodecahedral noma ama-pseudooctahedral afinyelela ku-3 cm ububanzi; kwenzeka futhi njengezinhlamvu eziyindilinga. Amakristalu abonisa ngale kuya ku-translucent, ane-vitreous kuya ku-oily luster. Umbala uvame ukuba luhlaza okwesibhakabhaka ngokukhanyayo, kodwa futhi ungaba mhlophe, grey, ophuzi, oluhlaza okotshani, kanye nopinki. Esigabeni esincanyana, amakristalu awanambala noma aluhlaza okwesibhakabhaka okuphaphathekile, futhi umugqa uluhlaza okwesibhakabhaka ophaphathekile kuya kokumhlophe.

Izakhiwo

Itshe yi-isotropic. Amaminerali eqiniso e-isotropic awanayo i-birefringence, kodwa itshe libuthakathaka li-birefringent phambi kokufakwa kulo. Inkomba ye-refractive ingu-1.50. Nakuba iphansi kakhulu, njengengilazi yefasitela evamile, iyinani eliphakeme kakhulu lamaminerali avela eqenjini le-sodalite. Ingabonisa okubomvu-owolintshi ukuze i-mauve fluorescence ngaphansi kokukhanya kwe-ultraviolet okude kwamaza.

I-neckline ayilungile, futhi amawele athintana, angena futhi ane-polysynthetic. I-fracture ayijwayelekile ukumise okwegobolondo, i-mineral i-brittle futhi inobunzima obuyi-5 1/2 kuya ku-6, cishe iqine njenge-feldspar. Wonke amalungu eqembu le-sodalite ane-density ephansi kakhulu, engaphansi kwe-quartz; I-hauyne iminyene kunazo zonke, kodwa inamandla adonsela phansi athile angu-2.44–2.50 kuphela.

Uma itshe libekwe esilayidini seglasi futhi liphathwa nge-nitric acid HNO3, khona-ke isisombululo sivunyelwe ukuhwamuka kancane, kwakhiwa izinaliti ze-gypsum ze-monoclinic. Lokhu kwehlukanisa i-hauine ne-sodalite, okuthi ngaphansi kwezimo ezifanayo yakha amakristalu e-cubic e-chlorite. I-mineral ayinayo imisebe.

Isampula evela eMogok, eBurma

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