opály 5 Exclude matching results ložiska opálov 3 Exclude matching results spracovanie drahých kameňov 2 Exclude matching results bane 1 Exclude matching results dejiny baníctva 1 Exclude matching results deposits of raw materials 1 Exclude matching results drahé kamene 1 Exclude matching results ložiská nerastných surovin 1 Exclude matching results minerály 1 Exclude matching results mines 1 Exclude matching results opals 1 Exclude matching results precious stones 1 Exclude matching results ťažba opálov 1 Exclude matching results