Mexican made opal and crystal pendants crescent moon pendant elephant pendant

Pendants are a crescent moon and elephant. They are covered in opal, I do believe these are man made opals, and crystals. They''re marked .925 sterling silver. The silver does need a good cleaning. It does like there are a few crystals missing from the elephant and a few balls from the moon. They are made by mexican artisans in Mexico. They are very beautiful with lots of shine and flash. These are from my personal collection. Quarter is for size reference only. Please ask any questions you may have. Thank you.