Qhov sib txawv tseem ceeb ntawm mica thiab pigment yog cov hmoov mica yog ci thiab muab cov xim hlau los yog ci ntsa iab zoo li cov nyhuv, thaum cov hmoov pigment muaj matte tiav.
Cov ntsiab lus mica thiab pigment feem ntau tau tham hauv qab kev lag luam hmoov, uas lawv tau siv rau hauv cov khoom lag luam zoo nkauj, cov khoom kho mob xws li tshuaj pleev thiab xab npum, khoom siv kos duab, thiab lwm yam.
Mica yog dab tsi
Mica yog cov ntxhia muaj peev xwm ua tau zoo tshaj plaws los faib mica crystals rau hauv daim hlau nyias nyias. Peb tuaj yeem muab lub npe yam ntxwv no ua qhov zoo tshaj plaws basal cleavage.
Daim duab 01: Mica Sheets
Feem ntau, mica crystals muaj nyob rau hauv cov pob zeb tsis muaj zog thiab metamorphic. Qee zaum, peb tuaj yeem pom cov khoom no hauv cov pob zeb sedimentary li cov flakes me. Cov khoom no tshwj xeeb tshaj yog nyob rau hauv granite hom, pegmatites, thiab schists. Mica tuaj nyob rau hauv phyllosilicates. Cov xim ntawm cov khoom siv no tuaj yeem yog xim liab, rosy, nyiaj mus rau xim tsis muaj xim lossis pob tshab. Lub cleavage ntawm cov khoom no yuav luag zoo tag nrho, thiab cov tawg yog flaky. Cov pob zeb no muaj pearly, vitreous luster thiab dawb rau cov xim tsis muaj xim.
Muaj txog 37 tus tswv cuab ntawm pawg mica ntawm cov zaub mov. Tag nrho cov ntaub ntawv ntawm cov ntxhia no zoo li crystallize nyob rau hauv monoclinic system, thiab lawv muaj lub siab nyiam tsim pseudoxagonal crystals. Feem ntau, mica yog cov khoom siv translucent uas muaj cov vitreous los yog pearly luster. Cov deposits ntawm cov ntxhia no feem ntau muaj flaky los yog platy tsos.
Cov khoom ntawm cov nplooj ntawv ntawm mica crystals muaj xws li tshuaj inertness, dielectric xwm, elasticity, yooj, hydrophilic xwm, insulating zog, hnav, refractive xwm, thiab lwm yam
Pigment yog dab tsi?
Pigment hmoov yog hom xim av thiab zoo li hmoov av chalk. Cov khoom no qhia cov xim sib txawv vim tias nws muaj peev xwm xaiv tau qhov nqus ntawm lub teeb ntawm lub teeb. Txawm hais tias muaj ntau yam ntaub ntawv uas peb paub tias muaj peev xwm no, pigments muaj lub zog tinting siab, yog li txawm tias me me ntawm cov hmoov yog txaus los qhia cov xim thaum cov hmoov siv rau ntawm cov khoom los yog tov nrog cov cab kuj.
Thaum ntxov, cov xim tuaj ntawm tej qhov chaw xws li charcoal thiab hmoov minerals. Hais txog cov ntaub ntawv hluavtaws ntawm cov pigments, feem ntau cov xim pigments yog cov xim hlau lead dawb uas ua los ntawm kev sib xyaw cov hmoov lead thiab vinegar nyob rau hauv muaj cov pa roj carbon CO2. Lwm hom hluavtaws pigment yog Egyptian xiav pigment (uas muaj calcium tooj liab silicate) uas yog los ntawm iav uas yog xim siv malachite tooj liab ore.
Daim duab 02: Cadmium Pigment
Qee yam piv txwv ntawm cov xim hlau muaj xws li cadmium pigment, chromium pigment, tooj liab pigment, hlau oxide pigment, lead pigment, manganese pigment, mercury pigment, titanium pigment, thiab lwm yam. Qee hom xim xim inorganic muaj xws li carbon pigments, av nplaum av, ultramarine pigments, thiab lwm yam.
Qhov txawv ntawm Mica thiab Pigment yog dab tsi?
Mica thiab pigments muaj txiaj ntsig zoo li cov khoom siv hmoov. Mica yog cov ntxhia muaj peev xwm ua tau zoo tshaj plaws los faib cov mica crystals rau hauv daim hlau nyias nyias thaum cov hmoov pigment yog hom xim av thiab zoo li hmoov av chalk. Qhov sib txawv tseem ceeb ntawm mica thiab pigment yog tias mica hmoov yog ci thiab muab cov xim hlau los yog ci ntsa iab zoo li cov nyhuv thaum cov hmoov pigment muaj matte tiav.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm mica thiab pigment hauv daim ntawv tabular.
Summary – Mica vs Pigment
Mica thiab pigments muaj txiaj ntsig zoo li cov khoom siv hmoov. Qhov sib txawv tseem ceeb ntawm mica thiab pigment yog tias mica hmoov yog ci thiab muab cov xim hlau los yog ci ntsa iab zoo li cov nyhuv, thaum cov hmoov pigment muaj matte tiav.
