=Elemental Composition of Lunar Crust=
(and Earth Crust)
various sources, not especially accurate
| | Lunar | Lunar | Earth | | | Highlnd | Lowlnd | Average | | Oxygen | 446000 | 417000 | 466000 | | Silicon | 210000 | 212000 | 277000 | | Aluminum | 133000 | 69700 | 81300 | | Iron | 48700 | 132000 | 50000 | | Calcium | 106800 | 78800 | 36300 | | Sodium | 3100 | 2900 | 28300 | | Potassium | 800 | 1100 | 25900 | | Magnesium | 45500 | 57600 | 20900 | | Titanium | 3100 | 31000 | 4400 | | Hydrogen | 56 | 54 | 1400 | | Phosphorus | 500 | 660 | 1050 | | Manganese | 675 | 1700 | 950 | | Fluorine | - | - | 950 | | Boron | - | - | 950 | | Barium | - | - | 500 | | Strontium | - | - | 370 | | Sulfur | - | - | 350 | | Carbon | 100 | 100 | 200 | | Zirconium | - | - | 190 | | Tungsten | - | - | 160 | | Vanadium | - | - | 160 | | Chlorine | 17 | 26 | 130 | | Chromium | 850 | 2600 | 100 | | Rubidium | - | - | 90 | | Nickel | - | - | 80 | | Zinc | - | - | 75 | | Cerium | - | - | 68 | | Copper | - | - | 50 | | Neodymium | - | - | 38 | | Lanthanum | - | - | 32 | | Yttrium | - | - | 30 | | Nitrogen | - | - | 25 | | Cobalt | - | - | 20 | | Lithium | - | - | 20 | | Niobium | - | - | 20 | | Gallium | - | - | 18 | | Scandium | - | - | 16 | | Lead | - | - | 14 | | Thorium | - | - | 12 | | Praseodymium | - | - | 9.5 | | Samarium | - | - | 7.9 | | Gadolinium | - | - | 7.7 | | Dysprosium | - | - | 6.0 | | Hafnium | - | - | 5.3 | | Erbium | - | - | 3.8 | | Ytterbium | - | - | 3.3 | | Caesium | - | - | 3.0 | | Uranium | - | - | 2.7 | | Beryllium | - | - | 2.6 | | Tin | - | - | 2.2 | | Europium | - | - | 2.1 | | Tantalum | - | - | 2.0 | | Germanium | - | - | 1.8 | | Molybdenum | - | - | 1.5 | | Arsenic | - | - | 1.5 | | Holmium | - | - | 1.4 | | Terbium | - | - | 1.1 | | Thallium | - | - | 0.6 | | Thallium | - | - | 0.6 | | Thulium | - | - | 0.5 | | Bromine | - | - | 0.4 | | Antimony | - | - | 0.2 | | Iodine | - | - | 0.14 | | Cadmium | - | - | 0.11 | | Silver | - | - | 0.07 | | Mercury | - | - | 0.05 | | Selenium | - | - | 0.05 | | Indium | - | - | 0.05 | | Bismuth | - | - | 0.05 | | Tellurium | - | - | 0.005 | | Gold | - | - | 0.001 | | Platinum | - | - | 0.001 |