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.
Understand the cause of silver tarnish. Tarnish develops as a chemical reaction. The most common source is through the air (although direct contact with substances that contain sulfur will also cause tarnish). This is why silver is generally stored in air-restricted spaces.