I determined that the gems I found in my travels were extremely durable, but also carried magical properties. The geode bestows physical properties to the wearer, increasing both their stamina, and strength. The amethyst shared with its owner the ability to ward off disease and poison, and boost overall life force.
The wearer of polished quartz is able to channel magical energies from their surrounding and increase their intelligence and wisdom of things. Each of these gems mounted nicely in enchanted and non enchanted silver, electrum, gold, platinum, and velium.