Vintage 80s Mexican sterling silver, turquoise & coral pendant necklace on chain

In the late 70s and throughout the 80s my husband and I vacationed in Mexico every December. I am selling parts of my collection I purchased there. Both the silver, turquoise & coral pendant and the 18" chain are stamped sterling. However, I don't remember whether this pendant was actually sold to me on this exact chain or not as I've had it for over 40 years. The pendant itself is approximately 1-5/8 inches long (including the hanging part above the cross) and 3/4" wide. Great for your festival, boho, southwestern or cowgirl look.