Summer sky pendant

I love the way this natural blue calcite stone reminds me of the summer sky. I complemented it with a 6mm round turquoise cabochon, and a sterling silver feather, hand-fabricated with the help of a Victorian impression die. The pendant measures 2.25" x 1.875" and has a hidden bail to hold the chain at the back. This listing includes a sturdy "peanut" chain. Let me know your choice of length: 16", 18" or 20"