Assertion: sodium carbonate's sodium | /r/AtLocation | feldspar
Facets:
Source sentences:
text: Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and rock salt (NaCl).
text: Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and rock salt (NaCl).