Qhov sib txawv tseem ceeb ntawm cov hlau nplaum thiab hematite yog cov hlau hauv magnetite yog nyob rau hauv +2 thiab +3 oxidation xeev whereas, hauv hematite, nws tsuas yog nyob rau hauv +3 oxidation xeev.
Magnetite thiab hematite yog cov zaub mov ntawm hlau. Ob leeg muaj hlau nyob rau hauv txawv oxidation xeev, thiab lawv yog nyob rau hauv cov ntaub ntawv ntawm hlau oxides. Lwm qhov sib txawv tseem ceeb ntawm cov hlau nplaum thiab hematite yog cov hlau nplaum yog xim dub, tab sis hematite muaj ntau yam xim.
Magnetite yog dab tsi?
Magnetite yog hlau oxide nrog cov tshuaj Fe3O4 Qhov tseeb, nws yog kev sib xyaw ntawm ob hlau oxides, FeO thiab Fe2O3Yog li ntawd, peb tuaj yeem qhia nws li FeO·Fe2O3 Raws li IUPAC nomenclature, nws lub npe yog hlau (II, III) oxide. Tab sis, feem ntau peb hu qhov no ua ferrous-ferric oxide. Magnetite tau txais nws lub npe vim nws yog hlau nplaum.
Daim duab 01: Magnetite Appearance
Magnetite yog xim dub, thiab nws cov streak kuj dub. Nws muaj ib tug metallic rau dull lustre. Ntawm Mohs scale, nws hardness yog muab raws li 5.5 - 6.5. Magnetite muaj cov qauv siv lead ua octahedral, tab sis peb tsis tshua pom cov hom rhombododecahedron. Nws qhia txog qhov tsis sib xws, tsis sib xws. Ntxiv mus, magnetite feem ntau tshwm sim nyob rau hauv South Africa, Lub teb chaws Yelemees, Russia thiab ntau qhov chaw hauv Asmeskas. Qhov no kuj muaj nyob rau hauv meteorites. Magnetite tseem ceeb heev vim nws cov khoom sib nqus. Tsis tas li ntawd, nws yog ib qho sorbent, yog li nws muaj txiaj ntsig zoo rau kev lim dej. Ntxiv mus, peb tuaj yeem siv nws ua cov khoom siv hluav taws xob thiab cov khoom siv txheej.
Hematite yog dab tsi?
Qhov no yog cov hlau oxide, uas muaj Fe (3+) ion. Yog li ntawd, nws muaj cov mis mos molecular ntawm Fe2O3 Qhov no yog cov ntxhia uas tuaj yeem muaj ntau yam xim. Mineral muaj ib tug subtranslucent los yog opaque xwm. Nws tshwm sim nyob rau hauv liab, xim av, reddish xim av, rov qab los yog silvery xim. Txawm li cas los xij, tag nrho cov hom hematite minerals muaj tib lub xim liab liab streak. Qhov tseeb, hematite tau txais nws lub npe vim cov ntshav liab nws muaj thaum nws nyob hauv daim ntawv hmoov.
Daim duab 02: Daim Ntawv Liab Xim Hematite
Ntawm Mohs nplai, nws qhov hardness yog 5-6. Hematite yog nkig, tab sis nws nyuaj dua li cov hlau ntshiab. Hematite muaj cov qauv siv lead ua rhombododecahedral. Qhov no qhia tau hais tias tsis xwm yeem / tsis sib xws. Nyob rau hauv qis kub hematite yog antiferromagnetic. Tab sis ntawm qhov kub siab dua, nws qhia tau tias paramagnetism. Muaj ob peb hom hematite raws li hauv qab no.
- Hematite rose - ib lub siv lead ua nyob rau hauv cov duab ntawm lub paj.
- Kidney ore - nws muaj lub raum zoo li pawg.
- Tiger hlau - cov no yog cov khoom qub qub. Cov deposit muaj alternating txheej ntawm silver-grey hematite thiab liab jasper.
- Specularite - qhov no muaj cov xim daj daj daj; yog li ntawd, pab tau zoo li ornaments.
- Oolitic hematite - nws muaj cov nplej sib npaug. Nws muaj xim liab liab thiab lub ntiaj teb lustre.
Hematite tshwm sim hauv tebchaws Askiv, Mexico, Brazil, Australia, thiab cheeb tsam Lake Superior. Nws yog ib qho tseem ceeb rau jewelery thiab ornaments.
Qhov txawv ntawm Magnetite thiab Hematite yog dab tsi?
Magnetite yog hlau oxide nrog cov tshuaj Fe3O4 whereas hematite yog hlau oxide nrog cov tshuaj Fe 2O3Magnetite hlau yog nyob rau hauv +2 thiab +3 oxidation xeev whereas, nyob rau hauv hematite, nws tsuas yog nyob rau hauv +3 oxidation xeev. Qhov no yog qhov sib txawv tseem ceeb ntawm magnetite thiab hematite. Ntxiv mus, magnetite muaj cov ntsiab lus hlau ntau dua hematite; yog li ntawd, nws zoo dua.
Tsis tas li ntawd, hauv cov xim ib yam nkaus, muaj qhov sib txawv ntawm cov hlau nplaum thiab hematite. Magnetite yog xim dub, tab sis hematite muaj ntau yam xim. Txawm li cas los xij, cov hlau nplaum muaj cov xim dub, qhov hematite muaj xim liab liab. Raws li lwm qhov sib txawv ntawm magnetite thiab hematite, hematite yog ib feem ntawm xeb, tab sis magnetite tsis yog. Ntxiv mus, thaum xav txog cov khoom sib nqus ntawm ob lub pob zeb, cov hlau nplaum yog cov hlau nplaum muaj zog, tab sis hauv hematite, hlau nplaum tshwm sim thaum cua sov. Ntxiv rau qhov ntawd, lwm qhov sib txawv ntawm cov hlau nplaum thiab hematite yog lawv cov qauv. Hematite muaj cov qauv siv lead ua rhombododecahedral thaum, magnetite feem ntau pom cov qauv siv lead ua octahedral.
Summary – Magnetite vs Hematite
Magnetite thiab hematite yog cov oxides tseem ceeb ntawm hlau. Txawm hais tias muaj ntau qhov sib txawv ntawm lawv, qhov sib txawv tseem ceeb ntawm magnetite thiab hematite yog cov hlau hauv magnetite yog nyob rau hauv +2 thiab +3 oxidation xeev whereas, nyob rau hauv hematite, nws tsuas yog nyob rau hauv +3 oxidation xeev.
