The iron oxides in rock crystals are specularite, hematite and lepidocrocite.
晶中铁镜铁矿、赤铁矿、纤铁矿。
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We wish nothing, save to be alone and to learn, and to feel as if with each day our sight were growing sharper than the hawk's and clearer than rock crystal.
我们一无所求, 只想独处和学习, 感每一天我们的视力都变得鹰眼更, 水晶更清晰。
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