Vintage handmade necklace with natural amethyst, rose quartz, carnelian

Vintage handmade necklace. Gold tone metal. With various natural semiprecious stones, including amethyst, clear quartz crystals, carnelian, two kinds of green stones (not sure what they are) and one dangling round light rose quartz stone. 24” around the neck, 12.5” drop length. There is a newly replaced lobster clasp at one end, but this necklace is long enough to just slide it in and out. Other than this new clasp, it is in excellent condition.