红色泥巴，主要由河流携带的陆源物质红土组成。红泥氧化铁含量较高。红泥矿位于嫩泥和矿层底部的泥料，矿形琐碎，需经手工挑选。 红泥优者光洁明亮，橙中略见红光；劣者杂乱阴霾，俗不可耐。红泥原矿坚硬似石，呈澹草绿色调，窑温略低，较适制作小件茗器，可爱灵动，深得世人喜爱。
介绍利用活化红泥岩制备红色水泥的研究。
The preparation of red cement using activated red mudstone has been studied.
介绍利用活化红泥岩制备红色水泥的研究。
The preparation of red cement using activated red mud stone has been studied.
观察告诉我，你的鞋面上沾有一小块红泥。
Observation tells me that you have a little reddish mould adhering to your instep.
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