Mineral | Sublocality | Reference |
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Britholite-(Y) | Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan | |
Iwashiroite-(Y) | Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan | |