ELEMENT % BY WEIGHT ------------------------ Aluminum 7.3 Calcium 8.5 Chromium 0.2 Iron 12.1 Magnesium 4.8 Manganese 0.2 Oxygen 40.8 Potassium 0.1 Silicon 19.6 Sodium 0.3 Titanium 4.5 ---- 98.4
Lunar soil melts at 1500 degrees Celsius, releasing all these valuable minerals. However, there are some elements that are obviously lacking.