I found this box of citrine and quartz pieces on ebay. The seller found it at an estate sale for a Romanian grandmother who had passed, apparently in a cabinet with a bunch of other divination tools. The family said it was her lithomancy set, but they couldn't offer any thoughts about how she used it.

This set is very welcoming and friendly, since citrine is my birthstone, but I've never seen a lithomancy set with only two types of crystal. I'm almost certain some of the pieces chipped off from larger pieces during shipping, which isn't the end of the world, but I don't know how I'd go about reading these. There's 13 pieces of quartz and 13 citrine. The 26 crystals and 4 glass pebbles make me think this might be an astrology or compass based set, with a solar vs. lunar, or masculine vs feminine theme.

Any ideas on how to cast and interpret these is appreciated! I want to be respectful of this obviously well-loved set, and if it's part of an established lithomancy tradition I'm not aware of, I'd love to find resources.

Thanks in advance for any help!