LimestoneBasaltMarbleQuartz
well for the nacklace quartz is super common and a super cheap stone tigers eye is a common stone too and cheap as well, but the hematite is common too but it is worth a bit more than quartz and tigers eye. I would say it would be worth around about 17 dollars!
yes, 20 dollars is a reasonable price. However, a lot of people look for bargains so maybe drop it to 15. You also have to look at the cost for materials to compare
