I made copper and enamel earrings and a pendant for my mother in junior high school a "long" time ago.
Don't believe the answers on "wiki"type websites,the above link has a number of false answers at the bottom of the page.
What does the back look like? It could be an art student piece.
The hole does not look like a casting problem,without a photo of the piece and location it appears there was something attached to that location....
Bottom photo.............. https://www.amazon.com/Talisman-Pentacle-Hermetic-Enochian-Kabbalah/dp/B007I35QLK
@scoutshouse You might try adding petroglyph to your search........
Looks like a homemade craft project from one of the many wood working magazines like this one ... https://www.woodcraft.com/pages/magazine
The photos are not in focus,the white areas on the large beads are tinged blue and could be dyed lapis....
There is also a Jason Livingston, Navajo who made inlay pieces.It's just another guessing game of who made me.
Hard to tell from the photos,but it could be Sugilite.
Like all minerals jade can be visually flawless or have inclusions,the "cleaner" the interior is usually more expensive....
The second one also appears to be modern......... https://www.pearlclasp.com/single-strand-silver-box-pearl-clasp/
Poorly cast silver in the top photo,looks like less than cheap costume jewelry.
Does the blade have a sharp or flat edge?
Larimar
I don't think this clasp id can be dated,the photos of the clasp are a bit dark.The hinge,pin and "C" clasp look homemade.Possibly from scrap...
This article might help............. https://www.jckonline.com/magazine-article/buying-amethyst-today/
Amethyst is a fairly inexpensive stone and man made amethyst has been around for at least 40 years. Gem testers help with identification,but they...
Modern.... https://www.pragmaticmom.com/2014/11/japanese-soda-science-kids/
Looks Chinese with the dragons and phoenix,the photos are too dark to see details.
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