1: a pob zeb uas muaj feldspar crystals embedded nyob rau hauv ib tug compact tsaus liab los yog liab doog hauv av. 2: lub pob zeb tsis pom kev ntawm porphyritic kev ntxhib los mos.
What does lo lus Greek Porphyrus mean in English?
Lo lus porphyry yog los ntawm Ancient Greek πορφύρα (porphyra), txhais tau tias " liab"Ntshav yog xim ntawm huab tais huab tais, thiab "imperial porphyry" yog ib qho ntshav sib sib zog nqus igneous. pob zeb nrog loj crystals ntawm plagioclase. … Tom qab ntawd, lub npe tau muab rau cov pob zeb uas tsis muaj zog nrog cov muaju loj.
pob zeb porphyry yog dab tsi?
Porphyry yog ntau haiv neeg ntawm cov pob zeb tsis muaj zog uas muaj cov pob zeb loj xws li quartz thiab feldspar tawg mus rau hauv cov av nplua nuj Lub hauv paus yog tsim los ntawm cov muaju uas tsis paub qhov txawv (aphanites xws li hauv bas alt) los yog yooj yim distinguishable crystals (phanerites li hauv granite).
feldspar txhais li cas hauv kev tshawb fawb?
: ib pawg ntawm cov pob zeb crystalline uas muaj cov txhuas silicates nrog cov poov tshuaj, sodium, calcium, lossis barium thiab uas yog ib qho tseem ceeb ntawm yuav luag tag nrho cov pob zeb crystalline.
Dab tsi yog qhov tseem ceeb ntawm feldspar?
Feldspars yog siv los ua cov tshuaj fluxing los tsim ib theem iav ntawm qhov kub thiab txias thiab ua ib qho chaw ntawm alkalies thiab alumina hauv glazes. Lawv txhim kho lub zog, toughness, thiab durability ntawm lub cev ceramic, thiab cement lub crystalline theem ntawm lwm cov khoom xyaw, softening, melting thiab wetting lwm batch constituents.
