Qhov sib txawv tseem ceeb ntawm pyrite thiab marcasite yog pyrite muaj qhov isometric crystal system, whereas marcasite muaj ib qho orthorhombic crystal system.
Pyrite thiab marcasite yog ob hom hlau sulfide cov zaub mov uas muaj hlau nyob rau hauv lub xeev +2 oxidation. Txawm hais tias ob daim ntawv ntxhia muaj tib cov tshuaj muaj pes tsawg leeg, lawv muaj cov tshuab siv lead ua sib txawv.
YPyrite yog dab tsi?
Pyrite yog cov ntxhia ntawm cov hlau, muaj hlau disulfide hauv isometric crystal system. Cov tshuaj no tseem hu ua hlau pyrite los yog ruam tus kub. Cov tshuaj formula ntawm cov ntxhia no yog FeS2, thaum lub mis loj ntawm cov tshuaj no yog 119.98 g / mol. Ntxiv mus, nws yog cov ntxhia sulfide ntau tshaj plaws hauv ntiaj teb.
Pyrite muaj xim daj-daj-daj reflective lustre, uas tarnishes darker thiab iridescent. Thaum xav txog qhov ntxaib ntawm cov pob zeb hauv pyrite, nws qhia tau tias kev nkag mus thiab kev sib cuag twinning, thiab cov pob txha tawg tsis sib xws, tab sis qee zaum nws tuaj yeem ua conchoidal. Cov pob zeb no yog nkig, thiab nws muaj ib qho xim hlau. Tsis tas li ntawd, cov xim streak ntawm pyrite yog ntsuab-dub mus rau xim av-dub. Cov khoom no yog opaque, thiab nws muaj ib tug hardness li ntawm 6-6.5 ntawm lub Mohs nplai. Tsis tas li ntawd, nws yog cov khoom siv paramagnetic.
Pyrite ntxhia feem ntau tsim cov pob zeb cuboid. Qee lub sij hawm nws tsim raspberry-puab pawg hu ua framboids. Ntxiv mus, cov khoom no tuaj yeem tsim cov duab uas zoo ib yam li daim ntawv dodecahedral li niaj zaus. Txawm hais tias pyrite zoo li kub, uas ua rau nws lub npe hloov pauv, tus neeg ruam kub, peb tuaj yeem yooj yim paub qhov txawv ntawm cov khoom no los ntawm cov kub ib txwm muaj raws li qhov nyuaj, brittleness, thiab siv lead ua. Haiv neeg kub yog qhov tsis sib xws (anhedral) thiab pyrite yog cubically zoo li tus lossis ntau yam siv lead ua zoo li.
Muaj ntau yam kev siv pyrite, suav nrog nws siv los ua qhov hluav taws kub thaum ntxov, siv los tsim cov ferrous sulfate lossis copperas, rau kev tsim cov sulfur dioxide los siv hauv kev lag luam ntawv, thiab lwm yam. cathode hauv energizers, thiab lwm yam.
Marcasite yog dab tsi?
Marcasite yog cov ntxhia ntawm cov hlau uas muaj hlau disulfide nyob rau hauv ib qho orthorhombic crystal system. Nws tseem hu ua dawb hlau pyrite vim nws yog ib qho txawv ntawm pyrite. Cov tshuaj muaj pes tsawg leeg ntawm marcasite yog ferrous sulfide los yog FeS2, teem rau hauv ib qho orthorhombic siv lead ua. Daim ntawv ntxhia no yog lub cev thiab crystallographically txawv ntawm pyrite.
Thaum xav txog qhov zoo li ntawm marcasite, nws muaj tin-dawb ntawm qhov chaw tshiab, uas tsaus ntuj thaum raug huab cua. Qhov tawg ntawm marcasite yog qhov tsis sib xws lossis tsis sib xws, thiab cov ntxhia yog nkig thiab. Hauv Mohs hardness nplai, cov pob zeb no muaj txog 6-6.5 hardness, thiab cov luster ntawm cov pob zeb no yog xim hlau. Tsis tas li ntawd, cov xim streak ntawm marcasite yog grey tsaus rau dub. Marcasite yog cov khoom siv opaque.
Dab tsi yog qhov zoo sib xws ntawm Pyrite thiab Marcasite?
- Pyrite thiab Marcasite yog cov zaub mov ntawm hlau disulfide.
- Ob leeg muaj xim hlau nplaum.
- Cov zaub mov no muaj hlau nyob rau hauv lub xeev +2 oxidation.
Qhov txawv ntawm Pyrite thiab Marcasite yog dab tsi?
Pyrite thiab marcasite yog ob hom hlau disulfide minerals. Qhov sib txawv tseem ceeb ntawm pyrite thiab marcasite yog pyrite muaj isometric crystal system, whereas marcasite muaj ib qho orthorhombic crystal system. Tsis tas li ntawd, pyrite muaj xim daj-daj-daj reflective luster thaum marcasite muaj cov tin-dawb tsos ntawm qhov chaw tshiab.
Cov hauv qab no qhia txog qhov sib txawv ntawm pyrite thiab marcasite hauv daim ntawv teev npe.
Summary – Pyrite vs Marcasite
Pyrite thiab marcasite yog cov ntaub ntawv ntxhia ntawm ferrous sulfide qhov twg hlau tshwm sim hauv lub xeev +2 oxidation. Lawv muaj cov qauv siv lead ua sib txawv, uas ua rau lawv sib txawv ntawm ib leeg. Qhov sib txawv tseem ceeb ntawm pyrite thiab marcasite yog pyrite muaj isometric crystal system, whereas marcasite muaj ib qho orthorhombic crystal system.
