For example, rice from Australia, China,
and Vietnam had higher 87Sr/86Sr values than that from Japan or
California (USA). Moreover, rice cultivated in the USA had higher
amounts of boron than that cultivated in Europe or India. Especially,
holmium was a state-specific elemental indicator, and it was found
in rice cultivated in Arkansas, USA. Furthermore, most of the rice
from Europe had higher amounts of Mg than that from the USA and
India/Pakistan; the rice from Europe had Mg content higher than
0.1 wt%