Question

write one of the following was called the blue gold tile the correct answer
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Answer 1

Answer:

Blue gold is an alloy of gold and either gallium or indium. Gold–indium contains 46% gold (about 11 karat) and 54% indium, forming an intermetallic compound AuIn2. ... With gallium, gold forms an intermetallic AuGa2 (58.5% Au, 14ct) which has slighter bluish hue.

Answer 2

Answer:

blue gold is a book....;( or maybe its water

hope its helpful:)