Will gold coins stored in envelopes containing some sulfur tone in time?
Gold is an inert metal that doesn’t rust or tarnish when exposed to air or water. Since most gold coins struck for circulation contain other metals, these metals may react to the environment if they are near the surface of the coin.
Will gold bullion coins such as the Gold American Eagle tone if they are stored in paper or cardboard holders that contain sulfur?
Gold bullion coins including the GAE, Canadian Maple Leaf, Austrian Philharmonic and others are typically 0
