Black.
Anthracite is the highest carbon coal, and therefore the most valuable.
coal
water and coal
copper and coal
Coal is the most valuable mineral in Pennsylvania. The state has abundant coal reserves, making it a significant contributor to the state's economy and energy production.
Diamonds are more valuable than coal.
Of the fossil fuels (coal, oil and natural gas).
Anthracite coal is the most valuable form of coal due to its high carbon content and low impurities, making it a highly efficient and clean-burning fuel source. Anthracite coal is prized for its energy density and is often used in high-end applications like heating homes and in industrial processes.
coal, platinum, copper, uranium nd iron ore
Anthracite coal has the most stored energy of all coal types. It is a high-grade coal with a relatively high energy content and low moisture content, making it a valuable fuel source for heating and electricity generation.
coal, platinum, copper, uranium nd iron ore
EMO RAINBOW UNICORN NINJAS!Actuaally the answer is coal, but I like randomness!