Qhov sib txawv tseem ceeb ntawm dioctahedral thiab trioctahedral yog tias dioctahedral hais txog muaj ob ntawm peb txoj haujlwm octahedrally muaj nyob hauv, whereas trioctahedral hais txog muaj tag nrho peb txoj haujlwm octahedrally ua haujlwm nyob.
Cov ntsiab lus dioctahedral thiab trioctahedral yog cov lus qhia uas piav qhia txog cov haujlwm nyob hauv ib qho qauv octahedral. Peb tuaj yeem pom cov ntsiab lus no tau piav qhia hauv qab phyllosilicates, qhov twg cov qauv ntawm daim ntawv silicates tau kawm.
Dioctahedral yog dab tsi?
Dioctahedral txhais tau hais tias muaj ob ntawm peb txoj haujlwm octahedrally uas muaj nyob hauv. Cov qauv no tau tham nyob rau hauv subtopic phyllosilicates, qhov twg muaj cov qauv silicate. Cov ntawv silicates no yog ib pawg ntawm cov zaub mov tshwj xeeb, suav nrog mica, chlorite, serpentine, talc, thiab lwm yam. Cov zaub mov no tsim los ntawm kev siv tshuaj lom neeg huab cua, thiab cov no yog cov muaj ntau ntawm cov pob zeb sedimentary.
Hais txog cov qauv hauv paus ntawm daim ntawv silicate ntxhia, nws tau sib txuas rau 6-tus tswv cuab ntawm SiO4-4 tetrahedra. Cov tetrahedra no zoo li nthuav tawm sab nraud hauv cov ntawv tsis kawg. Tawm ntawm cov no, plaub lub atoms oxygen yog nyob rau hauv tetrahedra, thiab peb cov pa atoms sib koom nrog lwm cov tetrahedra, tsim ib lub network qauv. Qhov kev sib koom ntawm oxygen atoms ua rau cov qauv Si2O5-2
Daim duab 01: Gibbsite Mineral
Thaum xav txog kev tsim cov qauv octahedral, phyllosilicates feem ntau muaj hydroxyl ion qhov twg OH pawg tshwm sim nyob rau hauv nruab nrab ntawm ib lub nplhaib rau-tus tswv cuab. Yog li, cov tshuaj formula ntawm cov hydroxyl uas muaj pawg no yog Si2O5(OH)-3 Thaum ib daim ntawv cog lus nrog cov ntawv silicate no, nws khi nrog OH pawg thiab tsim kev sib koom ua ke octahedral. Yog li ntawd, ib txheej ntawm cations tuaj yeem tsim tau (feem ntau nrog ferrous ions, magnesium ions thiab aluminium ions), thiab cov cations yog nyob rau hauv octahedral kev koom tes nrog oxygen atoms thiab hydroxyl ions ntawm tetrahedral txheej. Yog tias cov hlau cation txuas rau cov qauv no yog magnesium lossis ferrous ion, ces cov qauv octahedral yog brucite, thiab yog tias cov hlau ion yog txhuas, ces cov qauv yog gibbsite. Hauv cov qauv brucite, txhua qhov chaw octahedral tau nyob, thiab hauv cov qauv gibbsite, 3 rdcation site yog unoccupied, uas ua rau ob lub qauv trioctahedral thiab dioctahedral qauv, feem. Hauv cov qauv dioctahedral, txhua pawg oxygen atom lossis hydroxyl yog ib puag ncig los ntawm 2 trivalent cations, uas feem ntau yog txhuas cations.
Trioctahedral yog dab tsi?
Trioctahedral txhais tau hais tias muaj tag nrho peb txoj haujlwm octahedrally ua haujlwm nyob hauv. Cov qauv no tau pom feem ntau hauv cov zaub mov brucite, qhov twg cov qauv silicate muaj cov pa oxygen atom lossis hydroxyl ion ncig los ntawm 3 divalent cations xws li magnesium ion lossis ferrous ion.
Daim duab 02: Brucite Mineral
Kev tsim cov qauv octahedral hauv phyllosilicates tau piav qhia saum toj no hauv qab subtopic dioctahedral.
Qhov txawv ntawm Dioctahedral thiab Trioctahedral yog dab tsi?
Peb tuaj yeem pom cov ntsiab lus dioctahedral thiab trioctahedral tau piav qhia hauv qab phyllosilicates, qhov twg cov qauv ntawm daim ntawv silicates tau kawm. Qhov sib txawv tseem ceeb ntawm dioctahedral thiab trioctahedral yog tias dioctahedral hais txog muaj ob ntawm peb txoj haujlwm octahedrally muaj kev sib koom tes nyob hauv qhov chaw trioctahedral hais txog muaj tag nrho peb txoj haujlwm octahedrally ua haujlwm nyob.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm dioctahedral thiab trioctahedral hauv daim ntawv teev npe.
Summary – Dioctahedral vs Trioctahedral
Cov ntsiab lus dioctahedral thiab trioctahedral yog cov lus piav qhia uas piav qhia txog tus lej ntawm cov haujlwm nyob hauv ib qho qauv octahedral. Qhov sib txawv tseem ceeb ntawm dioctahedral thiab trioctahedral yog tias dioctahedral yog hais txog muaj ob ntawm peb txoj haujlwm octahedrally muaj nyob hauv, hos trioctahedral hais txog muaj tag nrho peb txoj haujlwm octahedrally ua haujlwm nyob.
