MCP 12.31.2014 EX23.1

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-169450 and No. 333-185182) and Form S-3 (No.333-176107, No. 333-181983 and No. 333-183336) of Molycorp, Inc. of our report dated March 3, 2014, except for the effects of the revision discussed in Note 26 to the consolidated financial statements, as to which the date is March 16, 2015, relating to the financial statements, which appears in this Form 10-K.