Philippine Mineral Resources act of 2012.

The Philippines' top mineral exports are copper, gold and nickel. Other target minerals include quartz, mica, iron, gypsum, feldspar, chromite, calcite and sulphur. Some target non-metallic minerals are sand and gravel, limestone, marble, clay and other quarry materials.Jul 18, 2018

Explanation:

There are two ways to propose amendments: First, states may call for a convention. This has never been used due to fears it would reopen the entire Constitution for revision. The other way is for Congress to pass amendments by a two-thirds majority in both the House and Senate.