Sec. 2. The State of Texas hereby relinquishes, quit-claims and grants to patentees and awardees and their assignees all of the lands, and minerals therein contained, lying across, or partly across watercourses or navigable streams, which lands are included in surveys heretofore made, and to which lands patents or awards have been issued and outstanding for a period of ten years from the date thereof and have not been cancelled or forfeited, and the State of Texas hereby relinquishes, quit-claims and grants to patentees and awardees and their assignees all of the beds, and minerals therein contained, or water courses or navigable streams, and also all of the abandoned beds, and minerals therein contained, of water courses or navigable streams, which beds or abandoned beds or parts thereof are included in surveys heretofore made, and to which beds or abandoned beds, or parts thereof, patents or awards have been issued and outstanding for a period of ten years from the date thereof, and have not been cancelled or forfeited; provided that nothing in this Act contained shall impair the rights of the general public and the State in the waters of streams or the rights of riparian and appropriation owners in the waters of such streams, and provided further that with respect to lands sold by the State of Texas expressly reserving title to minerals in the State, such reservation shall not be affected by this Act; nor shall relinquish or quit-claim any number of acres of land in excess of the number of acres of land conveyed to said patentee or awardees in the original patents granted by the State, but the patentees or awardees and their assignees shall have the same rights, title and interest in the minerals in the beds or abandoned beds, or parts thereof, of such water courses or navigable streams, that they have in the uplands covered by the same patent or award; provided that this Act shall not in any way affect the State's title, right or interests in and to the sand and gravel, lying within the bed of any navigable stream within this State, as defined by Article 5302, Revised Statutes of 1925.