Yellow Aventurine stones are crystals that contain a good amount of quartz in them, along with inclusions of various other minerals, which gives them their specific color.They are important stones to have within your collection for quite a few reasons. One major reason is that the quartz within them gives these crystals a strong ability to amplify energy.Because these qualities are added to the energy of the quartz, each of the different colored stones have unique metaphysical attributes.