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  Lopezite is a red mineral with a chemical formula K2Cr2O7. It has triclinic crystals and two varieties with monoclinic crystals.[1] 


  1. ^ Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: "Dana's new mineralogy", p. 692. John Wiley & Sons, 1997
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Lopezite". A list of authors is available in Wikipedia.
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