Assertion: beach's sand | /r/HasProperty | magnetite
Facets:
Source sentences:
text: Among the examples of beach placers are the gold deposits of Nome, Alaska; the zircon sands of Brazil and Australia; the black sands (magnetite) of Oregon and California; and the diamond-bearing marine gravels of Namaqualand, South Africa.
text: The red sand is garnet, and the black sand is magnetite.