The strengths decrease in order crocidolite chrysotile, amosite.

强度按青，，铁顺序下降。

The three most important varieties are chrysotile, crocidolite and amosite.

三要的是，青和铁。

Sometimes the composition mineral besides the antigorite and the chrysotile, contains the few dolomite, the magnesite, the tremolite and the olivine and so on.

组成矿物除叶蛇纹和纤蛇纹外，有时含少量的白云、菱镁矿、透闪和橄榄等。