n.钙铁榴石

The end member of garnet is dominated by andradite, with minor grossular and spessartine. 石榴子石端员组分以钙铁榴石为主，伴以少量钙铝榴石和锰铝榴石；

The variety of garnet includes almandine, pyrope, magnesium-iron garnet, manganese-aluminum garnet, andradite and calcium-chromium garnet. 石榴石的种类包括（铁铝榴石、镁铝榴石、镁铁榴石、锰铝榴石、钙铁榴石、钙铬榴石）。

Apart from magnetite and almandine garnet, the skarn also contains these minerals: idocrase, actinolite, epidote, fluorite and andradite (another garnet mineral). 主要构成矿物除磁铁矿和铁铝榴石外，矽卡岩尚有其他矿物如符山石，阳起石，绿帘石，萤石及钙铁榴石。

Keywords andradite;weight agent;drilling mud; 钙铁石榴石;加重剂;钻井泥浆;

iron andradite 铁榴石