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Chalcogen, K-Th, Trigonal
S1224102
S1616773
P1125755-1
P1125755-2
P20068423-1
P20068423-2
P20068423-3
P20068423-4
P20068423-5
P20068423-6
P20068423-7
P20068423-8
P20068423-9
S1723763