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pro vyhledávání: '"N. V. Schipalkina"'
Autor:
F. D. Sandalov, N. V. Schipalkina, I. V. Pekov, N. N. Koshlyakova, S. N. Britvin, E. G. Sidorov
Publikováno v:
Moscow University Bulletin. Series 4. Geology. 1:87-96
This article displays data on cristobalite and tridymite from the Arsenatnaya active fumarole, the Tolbachik volcano, Kamchatka, Russia. The minerals occur in associations with fumarolic sylvite, sanidine, cassiterite, hematite, pseudobrookite, johil