Rather, they have most likely caused a joint, bone, ligament or tendon injury due to overstraining, pinched nerve, or similar causes. While heart attack warning is usually connected with the pain in a woman's left arm, the right one, if hurting, is probably injured. The cause may be a simple night of sleeping while holding your right arm in an unnatural position.
As brass hardware ages, its surface oxidizes, which leaves a layer of tarnish over the hardware. Over time, an additional protective layer, called a patina, forms over the untreated tarnished brass.
Gold plated DOES tarnish if it contains metal alloys. The rate at which a gold-plated object will tarnish will entirely depend upon how much of the piece contains alloys. Gold weighs in at 2.5 on the Mohâs scale for mineral hardness, making it one of the softest metals on Earth.