Granite stars

All the elements heavier than hydrogen on our planet and on other planets are a result of nuclear reactions, generally known as nucleosynthesis, that occurred in the stars [17], Just as we have unstable molecules that dissociate into other more stable molecules, some of the nuclei that were synthesized in the stars are unstable and they disintegrate—they are the radioactive elements. The energy released by radioactive elements turns into heat it is a source of heat in the Earth. For example, the natural radioactivity in granite due to Th... 

K-feldspar, Blue Star pluton, Mineral Range 18.76 K-feldspar, granite of Desert Mountain 18.86... 

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