World''s Largest Opal Matrix is over 55,000 Carats in Size ...
Apr 10, 2015· What is the World''s Largest Opal Matrix? The largest Opal matrix ever found is a colossus of an Opal Matrix found in the fields of Southern Australia. It''s an unbelievably huge stone of some 55,000 carats in size. Thats 11 Kilos of Opal, the same as 4 bricks or 4,500 penny''s!