析出物的主要矿物相为针铁矿、石英、伊利石、蒙脱石和微量方解石，呈弱结晶状态。
The main mineral phases include goethite, quartz, illite, montmorillonite and small amounts of calcite, in the form of slight crystallization.
析出物的主要矿物相为针铁矿、石英、伊利石、蒙脱石和微量方解石，呈弱结晶状态。
The main mineral phases include goethite, quartz, illite, montmorillonite and small amounts of calcite, in the form of slight crystallization.
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