Mica (xws li biotite, chlorite lossis muscovite) muaj ib lub dav hlau cleavage, feldspar (xws li orthoclase lossis plagioclase) muaj ob qhov sib tshuam ntawm 90 °, thiab amphibole (xws li hornblende) muaj ob yam uas tsis sib tshuam ntawm 90 °. Calcite muaj peb lub dav hlau cleavage uas tsis sib tshuam ntawm 90 °.
Muaj pes tsawg cleavage dav hlau muaj calcite?
Peb zoo meej cleavages muab calcite nws rau-sided polyhedrons nrog pob zeb diamond-puab ntsej muag; Lub kaum sab xis txhais lub ntsej muag yog 78 ° thiab 102 °. Peb yam tseem ceeb siv lead ua (cov duab txawv ntawm cov ntxhia) ntawm calcite yog: (1) prismatic (ob leeg luv thiab ntev), (2) rhombohedral, thiab (3) scalenohedral.
Puas calcite muaj cleavage?
Los ntawm cov piv txwv, cov micas muaj qhov sib cais zoo meej hauv ib qho kev taw qhia uas yooj yim tsim; calcite muaj qhov zoo meej cleavage nyob rau hauv peb cov lus qhia uas kuj yooj yim los tsim; cov feldspars muaj ib tug zoo meej cleavage nyob rau hauv ib qho kev taw qhia uas yog ib qho yooj yim mus tsim thiab ib tug zoo cleavage nyob rau hauv lwm yam kev taw qhia uas yog nyuaj rau tsim …
Muaj pes tsawg lub dav hlau tawg?
Four cleavage planes tuaj yeem tsim 8-sided duab=octahedral cleavage (piv txwv li, fluorite). Rau lub dav hlau cleavage tuaj yeem tsim 12-sided duab=dodecahedral cleavage (piv txwv li, sphalerite).
5 hom kev tshem tawm yog dab tsi?
Nyob ntawm kev sib cais
- Kev txiav txim siab.
- Kev txiav txim siab.
- Holoblastic.
- Meroblastic.
