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Video: Yuav ua li cas koj txiav txim siab ib tug mineral streak?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Mineral Streak
Streak yog xim a ntxhia thaum itis crushed rau hmoov. Txoj kev yooj yim tshaj rau txiav txim siab ib qho kev ntxhib los mos yog rub tus ntug ntawm ib qho piv txwv tiv thaiv cov pobzeb unglazedporcelain. Cov ntxhia nrog hardness tsawg dua 7 willleave a streak . Rau ntau tus streak yuav dawb, soalways saib kom zoo zoo
Nyob rau hauv no txoj kev, puas tag nrho cov minerals muaj ib tug streak?
Yuav luag txhua yam ntxhia muaj ib lub hauv paus streak xim, tsis muaj teeb meem dab tsi xim qhov tseeb ntxhia yog. Piv txwv li, Calcite tshwm sim nyob rau hauv ntau yam xim, duab, thiab ntau yam. Tab sis txhua Ib hom Calcite muaj ib dawb streak . A streak yog pab tau indistinguishing ob cov ntxhia nrog tib xim butdifferent streak.
Tsis tas li ntawd, xim dab tsi yog Diamonds streak? Txawm hais tias a pob zeb diamond txoj kev yog feem ntau dawb inhue, nws muaj peev xwm manifest nws tus kheej nyob rau hauv ib tug tswv tsev ntawm txawv xim . Piv txwv li, ib qho kev lag luam pob zeb diamond txoj kev feem ntau yog blackin xim , tab sis nws tuaj yeem siv rau lwm yam xim , suav nrog liab, txiv kab ntxwv, daj, ntsuab, xiav lossis xim av. Nws kuj tseem yuav tsis muaj xim.
Tom qab ntawd, Streak xim txhais li cas?
Cov streak ntawm a mineral yog tus xim ntawm cov hmoov uas tsim thaum nws yog draggedacross qhov chaw uas tsis muaj huab cua. Yog tsis muaj streak zoo li bemade, lub mineral streak yog hais tias dawb los tsis muaj xim. Streak yog tshwj xeeb tshaj yog ib qho kev kuaj mob rau opaqueand xim cov ntaub ntawv.
Puas yog quartz tawm ntawm ib qho streak?
Streak cov phaj muaj Mohs hardness ntawm ib ncig ntawm 7, tab sis nco ntsoov xyuas koj streak phaj tiv thaiv ib daim ntawm quartz (hardness 7) vim qee qhov yog softer thiab ib txhia harder. Mineral streaks feem ntau tuaj yeem wiped tawm yooj yim nrog afingertip. Streak daim hlau tuaj dawb thiab dub.
Pom zoo:
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Yuav ua li cas koj txiav txim siab lub active site ntawm ib tug enzyme?
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Yuav ua li cas koj txiav txim siab qhov kawg tus cwj pwm ntawm ib tug polynomial?
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