Hanging In There Necklace. Here's a symbolic necklace for perhaps a heart heavy someone. An open heart pendant made from gleaming Hematite (which is said to have healing properties), hangs precariously seeming by sterling silver chain with a lobster clasp and 3 inch extension chain, but there is a key (charm) waiting to be turned by a new love....sounds like a soap opera! This pretty necklace chain measures 24 inches long with a 3 inch extension, the heart shaped pendant is 1.25 inches long by 1.5 inches wide, and the key charm is silver tone with tiny rhinestone and has a 1 inch drop.