SADI Muslihuddin Abumuhammad Abdulloh ibni Mushrifuddin (1203/8, Sheroz—1292, hamon jo), shoir, nasrnavis va mutafakkiri fors-tojik. …
Mufassal »SELESTIN
SELESTIN (lot. caelestis — osmonrang), mineralest az sinfi sulfatho, Sr[S04]; odatan omekhtahoi Sa va Va dorad. Kristallhoyash tugma va qalamchamonand. Selestin osmonrang, osmonrangi khokistari, bazan surkhcha yo zardchatob meshavad. Kristallhoi shaffofu berangi Selestin niz hastand. Sakhtiash 3,0—3,5; zichiash taqr. 4 g/sm3. Dar jinshoi tahshini va raghoi gidrotermali yoft meshavad. Selestin …
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