n.鈣鐵榴石

The end member of garnet is dominated by andradite, with minor grossular and spessartine. 石榴子石端員組分以鈣鐵榴石為主，伴以少量鈣鋁榴石和錳鋁榴石；

The variety of garnet includes almandine, pyrope, magnesium-iron garnet, manganese-aluminum garnet, andradite and calcium-chromium garnet. 石榴石的種類包括（鐵鋁榴石、鎂鋁榴石、鎂鐵榴石、錳鋁榴石、鈣鐵榴石、鈣鉻榴石）。

Apart from magnetite and almandine garnet, the skarn also contains these minerals: idocrase, actinolite, epidote, fluorite and andradite (another garnet mineral). 主要構(gòu)成礦物除磁鐵礦和鐵鋁榴石外，矽卡巖尚有其他礦物如符山石，陽(yáng)起石，綠簾石，螢石及鈣鐵榴石。

Keywords andradite;weight agent;drilling mud; 鈣鐵石榴石;加重劑;鉆井泥漿;

iron andradite 鐵榴石