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褐铁矿[Limonite] [2005-10-24]
iamet 发表在 ℃〖化学〗
| The hydrous iron oxide  -FeO(OH) +  -FeO(OH) which is a mixture of the and phases of unknown composition. Differences in color, as observed from a streak test, can distinguish the two phases if they are not mixed too closely. |
学好数理化，走遍天下都不怕！ | |
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