The short version: the warm, sunny stones people gravitate to — citrine, sunstone, carnelian, rose quartz, and amber. What each one is, and the cheerful associations attached to it.
Citrine — golden quartz, the sunny stone associated since antiquity with warmth and good cheer. Shop citrine
Sunstone — a feldspar flecked with copper that gives a warm orange glitter (aventurescence). Shop tumbled stones
Carnelian — bold orange chalcedony, a stone of warmth and drive. Shop carnelian
Rose quartz — gentle pink quartz, the stone of tenderness. Shop rose quartz
Amber — fossilized tree resin, warm gold and light in the hand, treasured since the Stone Age. Shop tumbled stones
See them at a Sedona shop.