Britholite Group from Amur Plate
Japan | |
| Imaoka, Teruyoshi, Akita, Sachiho, Nagashima, Mariko (2021) Dalyite (K2ZrSi6O15) and Zektzerite (LiNaZrSi6O15) in Aegirine-bearing Albitite from Iwagi Islet, SW Japan. Journal of Geography (Chigaku Zasshi), 130 (3) 369-378 doi:10.5026/jgeography.130.369 |
North Korea | |
| www.ctia.com.cn (n.d.) http://www.ctia.com.cn/TungstenNews/Print.asp?ArticleID=90677 |