Whenever any clay, gravel, sand, rock, earth, mineral, or other natural resource obtained from the soil or water of state owned real property, or any outgrowth, harvest, crop, agricultural, fishery, or forestry product, or any other produce found in, produced from, or grown in the soil or water of state owned real property, or any other yield or issue of state owned real property, shall become available to the acquiring authority and shall not be required for use by it, the acquiring authority shall forthwith notify the state purchasing agent who may requisition the same or any part thereof for use by any other department, board, bureau, commission, or agency of the state, or may sell the products or any part thereof to the highest bidder at public sale after giving public notice thereof by having the notice posted in some suitable public place for at least two (2) full business days before the sale, or at a private sale for not less than its appraisal value, or may, with the approval of the state properties committee, dispose of the products in such other manner and upon such terms and conditions as may in his or her judgment be most advantageous to the public interest.