The Exergy Replacement Costs of Mineral Wealth - Thanatia: The Destiny of the Earth's Mineral Resources - page 369

Table 12.5: The exergy and exergy cost of mineral reserves, and world re-
sources. Values are expressed in ktoe.- continued from previous page.

Production Reserves Resources

B B B Substance

reported
by USGS

Mineral ore B B B

Wolfram Scheelite 1.16E+00 1.02E+04 5.82E+01 5.11E+05 N.A. N.A.

Zinc Sphalerite 3.22E+03 7.06E+03 5.56E+04 1.22E+05 5.28E+05 1.16E+06

Zirconium Zircon 4.30E+00 1.02E+04 2.80E+02 6.67E+05 N.A. N.A.

Sum 3.27E+04 3.32E+06 1.75E+06 4.81E+08 1.43E+07 8.35E+09

End of the table