SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »ABRAQ
ABRAQ – (ba zaboni russi slyuda) minerali alyumosilikatie, ki sokhtash varaqin ast. Abraq garmitobovar buda, jarayoni elektrikiro nameguzaronad va tarkibi khimiyaviash murakkabu tagyiryobanda meboshad. Formulai umumiash: R1R2.3[AlSi3O10](OH.F)2, ki dar in jo R,=K, Na; R. =A1, Mg, Fe, Li meboshad. Az rui tarkib Abraq magniyu ohandor (fogopit, biotit, lepidomelan), alyuminiydor (muskovit, paragonit) va …
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