Calcite vs Quartz
Calcite thiab quartz yog cov ntxhia ntau heev nyob rau hauv lub ntiaj teb nto. Ob leeg muaj nyob rau hauv tag nrho peb hom pob zeb hu ua sedimentary, igneous thiab metamorphic pob zeb. Txawm hais tias lawv muaj ntau heev, lawv muaj txiaj ntsig vim lawv qhov sib txawv ntawm cov xim, cov duab, cov khoom, thiab lwm yam.
calcite
Calcite yog cov ntxhia, uas muaj calcium carbonate (CaCO 3). Qhov no yog ib tug nplua nuj ntxhia nyob rau hauv lub ntiaj teb nto. Calcite tuaj yeem tsim pob zeb, thiab lawv tuaj yeem loj hlob mus rau qhov loj me. Lawv muaj nyob rau hauv tag nrho peb hom pob zeb, uas yog sedimentary, igneous thiab metamorphic pob zeb. Ntau yam sib txawv ntawm calcites tuaj yeem tsim los ntawm kev hloov pauv hauv kev faib khoom thiab ib puag ncig. Lawv tuaj yeem tshwm sim raws li cov xim tsis muaj xim, lossis qee zaum tuaj yeem muaj xim dawb, paj yeeb, daj lossis xim av. Cov muaju tuaj yeem yog pob tshab, translucent lossis opaque, nyob ntawm cov khoom uas nws tau muab tso rau hauv thaum tsim. Tus nqi ntawm calcium carbonate muaj nyob rau hauv pob zeb tuaj yeem sib txawv. Qee zaum, muaj cov zaub mov calcite, uas muaj txog 99% calcium carbonate. Calcite muaj qhov tshwj xeeb kho qhov muag. Thaum lub teeb ci dhau los ntawm cov pob zeb calcite, nws ob npaug pom lub teeb. Tsis tas li ntawd, calcite muaj fluorescence, phosphorescence, thermo luminescence thiab triboluminescence zog. Nyob ntawm cov calcite ntau yam, qhov kev qhia ntawm cov khoom no yuav txawv. Calcites teb nrog cov kua qaub thiab tsim cov pa roj carbon dioxide. Tshwj xeeb tshaj yog nyob rau hauv dej, nws yuav tsawg soluble raws li qhov kub thiab txias, uas tso cai rau calcite rau precipitate thiab tsim ntau crystals. Calcites tsis tshua muaj zog, yog li lawv tuaj yeem khawb los ntawm tus ntiv tes. Calcite tuaj yeem pom hauv Ohio, Illinois, New Jersey, Tennessee, thiab Kansas hauv Asmeskas, thiab lub teb chaws Yelemees, Brazil, Mexico, England, Iceland, ntau lub tebchaws African thiab lwm yam.
Quartz
Quartz yog cov ntxhia uas muaj silicon dioxide (SiO2) feem ntau. Quartz muaj cov qauv crystalline tshwj xeeb nrog helix chains ntawm silicon tetrahedrons. Qhov no yog qhov thib ob ntau tshaj ntxhia nyob rau hauv lub ntiaj teb nto thiab muaj ib tug dav faib. Quartz yog ib feem ntawm tag nrho peb hom metamorphic, igneous thiab sedimentary pob zeb. Quartz tuaj yeem sib txawv ntawm ib qho chaw mus rau lwm qhov los ntawm lawv cov xim, pob tshab, qhov ntau ntawm silicon dioxide, qhov loj, cov khoom siv, thiab lwm yam. Lawv tuaj yeem ua xim tsis muaj xim, liab dawb, liab, dub, xiav, txiv kab ntxwv, xim av, daj, ntshav liab. Qee cov quartz pob zeb tuaj yeem ua pob tshab, qhov tuaj yeem tuaj yeem ua tau. Citrine, amethyst, milky quartz, pob zeb siv lead ua, sawv quartz, smoky quartz thiab prasiolite yog qee qhov loj siv lead ua quartz hom. Quartz feem ntau pom hauv Brazil, Mexico, Russia, thiab lwm yam. Muaj qhov sib txawv morphological tseem ceeb hauv cov khoom siv quartz sib txawv; yog li ntawd, lawv tau siv los ua pob zeb ornamental. Nws yog suav hais tias yog ib lub pob zeb semiprecious thiab siv los ua cov hniav nyiaj hniav kub. Ntxiv mus, quartz yog siv rau ceramics thiab cements vim nws cov thermal thiab tshuaj stability.
Qhov txawv ntawm Calcite thiab Quartz yog dab tsi?
• Calcite mas muaj calcium carbonate thiab quartz mas muaj silicon dioxide.
• Lub hardness ntawm quartz siab dua li ntawm calcite. Quartz muaj Mohs hardness ntawm 7, whereas calcite muaj Mohs hardness ntawm 3. Yog li, calcite tuaj yeem khawb los ntawm cov ntiv tes.
• Calcite tuaj yeem txheeb xyuas tau yooj yim vim nws yaj hauv cov kua qaub thiab tsim cov pa roj carbon dioxide. Quartz tsis yaj hauv cov kua qaub.
• Calcite muaj qhov zoo meej cleavage nyob rau hauv peb cov lus qhia thaum quartz muaj qhov tsis muaj zog cleavage nyob rau hauv peb txoj kev.
