Gauin, gauinite kapena gauinite - mchere wa tectosilicate wokhala ndi sulphate - kanema

Gauine, gauinite kapena gauinite ndi mchere wa sulphate tectosilicate wokhala ndi nsonga ya Na3Ca (Si3Al3) O12 (SO4).

Gulani miyala yachilengedwe m'sitolo yathu

Itha kukhala mpaka 5 wt. K2O, komanso H2O ndi Cl. Ndi feldspar komanso membala wa gulu la sodalite. Mwalawu udafotokozedwa koyamba mu 1807 kutengera zitsanzo zomwe zidapezeka mu chiphalaphala cha Vesuvian ku Monte Somma, Italy, ndipo adatchulidwa mu 1807 ndi Brunn-Neerhard pambuyo pa wolemba kristalo waku France René Just Gahuy (1743-1822). Nthawi zina amagwiritsidwa ntchito ngati mwala.

mawonekedwe

Imawonekera mu dongosolo la isometric, ndikupanga makristasi osowa a dodecahedral kapena pseudooctahedral mpaka 3 cm m'mimba mwake; imapezekanso ngati njere zozungulira. Makhiristo amawonekera ku translucent, okhala ndi vitreous ku luster wamafuta. Mtundu nthawi zambiri umakhala wabuluu wopepuka, koma ukhozanso kukhala woyera, imvi, wachikasu, wobiriwira, ndi pinki. Mu gawo lopyapyala, makhiristo amakhala opanda mtundu kapena buluu wotumbululuka, ndipo mzerewo ndi wotuwa kwambiri wabuluu mpaka woyera.

Katundu

Mwalawu ndi isotropic. Ma minerals enieni a isotropic alibe birefringence, koma mwalawo ndi wofooka kwambiri pamaso pa zophatikizikamo. Refractive index ndi 1.50. Ngakhale ndizotsika kwambiri, ngati galasi lazenera wamba, ndiye mtengo wapamwamba kwambiri wamchere kuchokera ku gulu la sodalite. Itha kuwonetsa zofiira-lalanje mpaka mauve fluorescence pansi pa kuwala kwakutali kwa ultraviolet.

Mzere wa khosi siwoyenera, ndipo mapasa amalumikizana, kulowa mkati ndi polysynthetic. Kuthyokako kumakhala kosasinthasintha kwa mawonekedwe a chipolopolo, mcherewo ndi wonyezimira ndipo uli ndi kuuma kwa 5 1/2 mpaka 6, pafupifupi molimba ngati feldspar. Mamembala onse a gulu la sodalite ali ndi kachulukidwe kakang'ono, kocheperako ka quartz; Hauyne ndiye wonenepa kwambiri kuposa onse, koma ali ndi mphamvu yokoka ya 2.44–2.50 yokha.

Ngati mwalawo wayikidwa pa galasi lopanda galasi ndikuthandizidwa ndi nitric acid HNO3, ndiye kuti yankholo limaloledwa kusuntha pang'onopang'ono, singano za monoclinic gypsum zimapangidwa. Izi zimasiyanitsa hauine kuchokera ku sodalite, yomwe pansi pamikhalidwe yomweyi imapanga makhiristo a klorite. Mcherewu siwotulutsa ma radio.

Chitsanzo chochokera ku Mogok, Burma

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