US law firm's potential class action suit against the company would be based on “malicious and false information,” says Novagold.

Spot gold has surged more than 40% over the last 14 months.

Researchers at the University of Michigan created a flexible transparent conductor that sandwiches a thin layer of silver between two “dielectric” materials and produces a conductive anti-reflection coating on the sheet of plastic.

Scramble for gold-backed ETFs reaches fever pitch with $40 billion of bullion snapped up so far this year.