ZIRCON (GISEMENTS)
-
BTGEMMES + PIERRES FINES (GISEMENTS)
-
UDC553.86
-
Descriptor GERZIRKON (LAGERSTÄTTEN)
-
Descriptor ENGZIRCON (MINERAL DEPOSITS)
-
Descriptor FREZIRCON (GISEMENTS)
-
Variant FREGISEMENTS/ZIRCON