Nefrit

Nefrit (az yun. nephros — gurda; dar zamoni qadim chunin mepindosh- tand, ki Nefrit ba dardi gurda davost), yak navi mineralhoi aktinolit va tremolit. Sokhti darunii Nefrit az nakhhoi baso mahini mikroskopii no- muntazam iborat ast. Rangash safed, zard, surkh, siyoh, sabz, bazan rangorangi naqshin yo rakh-rakh meshavad. Takhtachahoi tunuki on rushnoiro ba khubi meguzaronand. Nefrit hangomi metamorfizmi jinshoi asosi (serpeptinitho, varaqsanghoi kristallii piroksenu amfiboldor va digar) ba vujud meoyad. Nefrit sangi khele sakht va mustahkam buda, nagz sayqal meyobad. Az in ru khalqhoi jahon (makhsusan khalqhoi Osiyoi Markazi, Ev­ropa, Amerika) az qadimulayyom az Nefrit mujassamavu asbobhoi oroishi zanon, zarfhoi gunogun (kosa, ta­baq, guldon) mesozand. Qismi ziyodi Nefritro az bayni shagalu sanghoi daryobod paydo mekunand. Konhoi kaloni Nefrit dar SSSR (Sayani Sharqi, atrofi kuli Baykal), Khitoy, jazirahoi Zelandiyai Nav va Polineziya mavjudand.