Keyword
ore
Info
FrequencyTop 1600-1700
Type
Kyōiku (5th grade) 
?
Shinjitai ?
KankenLevel 6
Heisig802
Old form
Readings
こう
(80%)
Composed of
gold
wide
Used in vocabulary (181 in total)
Examples (17 in total)
Rocks and minerals are useful for us in many ways.
Water, forests, and minerals are important natural resources.
Many workers were trapped in the coal mine.